Common Weakness Enumeration
CWE-502
AllowedDeserialization of Untrusted Data
Abstraction: Base · Status: Draft
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
2664 vulnerabilities reference this CWE, most recent first.
CVE-2026-55009 (GCVE-0-2026-55009)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:05 – Updated: 2026-11-01 17:32
VLAI
EPSS
VEX
Title
Microsoft Exchange Server Elevation of Privilege Vulnerability
Summary
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 00:00 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
microsoft
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 |
Affected:
15.01.0.0 , < 15.01.2507.071
(custom)
|
|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 |
Affected:
15.02.0.0 , < 15.02.1544.043
(custom)
|
|
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 |
Affected:
15.02.0.0 , < 15.02.1748.048
(custom)
|
|
| Microsoft | Microsoft Exchange Server Subscription Edition RTM |
Affected:
15.02.0.0 , < 15.02.2562.045
(custom)
|
Date Public
2026-07-14 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-55009",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-13T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-15T03:57:28.894Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2016 Cumulative Update 23",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.01.2507.071",
"status": "affected",
"version": "15.01.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2019 Cumulative Update 14",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.02.1544.043",
"status": "affected",
"version": "15.02.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2019 Cumulative Update 15",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.02.1748.048",
"status": "affected",
"version": "15.02.0.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server Subscription Edition RTM",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.02.2562.045",
"status": "affected",
"version": "15.02.0.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2016:*:cumulative_update_23:*:*:*:*:*:*",
"versionEndExcluding": "15.01.2507.071",
"versionStartIncluding": "15.01.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_14:*:*:*:*:*:*",
"versionEndExcluding": "15.02.1544.043",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_se:*:RTM:*:*:*:*:*:*",
"versionEndExcluding": "15.02.2562.045",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server_2019:*:cumulative_update_15:*:*:*:*:*:*",
"versionEndExcluding": "15.02.1748.048",
"versionStartIncluding": "15.02.0.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-07-14T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to elevate privileges locally."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-01T17:32:40.320Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "Microsoft Exchange Server Elevation of Privilege Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55009"
}
],
"title": "Microsoft Exchange Server Elevation of Privilege Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-55009",
"datePublished": "2026-07-14T17:05:02.147Z",
"dateReserved": "2026-06-16T14:12:44.283Z",
"dateUpdated": "2026-11-01T17:32:40.320Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54860 (GCVE-0-2026-54860)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
EPSS
VEX
Title
WordPress Ozisti theme <= 1.1.10 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Ozisti <= 1.1.10 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:38 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/o… | vdb-entry |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54860",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T18:38:21.006097Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T18:50:03.835Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Ozisti",
"vendor": "ThemeREX",
"versions": [
{
"lessThanOrEqual": "1.1.10",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "johska | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in Ozisti \u003c= 1.1.10 versions."
}
],
"value": "Unauthenticated PHP Object Injection in Ozisti \u003c= 1.1.10 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T15:25:15.160Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/theme/ozisti/vulnerability/wordpress-ozisti-theme-1-1-10-php-object-injection-vulnerability?_s_id=cve"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress Ozisti theme \u003c= 1.1.10 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54860",
"datePublished": "2026-10-29T15:24:04.196Z",
"dateReserved": "2026-06-16T09:22:06.970Z",
"dateUpdated": "2026-10-30T18:50:03.835Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54859 (GCVE-0-2026-54859)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 19:40
VLAI
EPSS
VEX
Title
WordPress Preservation theme <= 1.15 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Preservation <= 1.15 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 19:40 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/p… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ThemeREX | Preservation |
Affected:
n/a , ≤ 1.15
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54859",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-29T19:40:16.181269Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T19:40:30.116Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Preservation",
"vendor": "ThemeREX",
"versions": [
{
"lessThanOrEqual": "1.15",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "johska | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions."
}
],
"value": "Unauthenticated PHP Object Injection in Preservation \u003c= 1.15 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T15:25:13.652Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/theme/preservation/vulnerability/wordpress-preservation-theme-1-15-php-object-injection-vulnerability?_s_id=cve"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress Preservation theme \u003c= 1.15 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54859",
"datePublished": "2026-10-29T15:24:03.450Z",
"dateReserved": "2026-06-16T09:22:06.970Z",
"dateUpdated": "2026-10-29T19:40:30.116Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54858 (GCVE-0-2026-54858)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-29 17:16
VLAI
EPSS
VEX
Title
WordPress Printy theme <= 1.13.0 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Printy <= 1.13.0 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 17:11 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/p… | vdb-entry |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54858",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-29T17:11:54.969685Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T17:16:59.146Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Printy",
"vendor": "ThemeREX",
"versions": [
{
"lessThanOrEqual": "1.13.0",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "johska | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in Printy \u003c= 1.13.0 versions."
}
],
"value": "Unauthenticated PHP Object Injection in Printy \u003c= 1.13.0 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T15:25:12.272Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/theme/printy/vulnerability/wordpress-printy-theme-1-13-0-php-object-injection-vulnerability?_s_id=cve"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress Printy theme \u003c= 1.13.0 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54858",
"datePublished": "2026-10-29T15:24:02.681Z",
"dateReserved": "2026-06-16T09:22:06.970Z",
"dateUpdated": "2026-10-29T17:16:59.146Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54857 (GCVE-0-2026-54857)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
EPSS
VEX
Title
WordPress Quirky theme <= 1.23 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in Quirky <= 1.23 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:38 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/q… | vdb-entry |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54857",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T18:38:14.786724Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T18:50:04.264Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Quirky",
"vendor": "ThemeREX",
"versions": [
{
"lessThanOrEqual": "1.23",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "johska | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in Quirky \u003c= 1.23 versions."
}
],
"value": "Unauthenticated PHP Object Injection in Quirky \u003c= 1.23 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T15:25:10.860Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/theme/quirky/vulnerability/wordpress-quirky-theme-1-23-php-object-injection-vulnerability?_s_id=cve"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress Quirky theme \u003c= 1.23 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54857",
"datePublished": "2026-10-29T15:24:01.923Z",
"dateReserved": "2026-06-16T09:22:06.969Z",
"dateUpdated": "2026-10-30T18:50:04.264Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54856 (GCVE-0-2026-54856)
Vulnerability from cvelistv5 – Published: 2026-10-29 15:24 – Updated: 2026-10-30 18:50
VLAI
EPSS
VEX
Title
WordPress RexCoin theme <= 1.2.6 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in RexCoin <= 1.2.6 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-30 18:38 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/r… | vdb-entry |
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54856",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-10-30T18:38:30.630764Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T18:50:04.441Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "RexCoin",
"vendor": "ThemeREX",
"versions": [
{
"lessThanOrEqual": "1.2.6",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "johska | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in RexCoin \u003c= 1.2.6 versions."
}
],
"value": "Unauthenticated PHP Object Injection in RexCoin \u003c= 1.2.6 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-29T15:25:09.453Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/theme/rexcoin/vulnerability/wordpress-rexcoin-theme-1-2-6-php-object-injection-vulnerability?_s_id=cve"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress RexCoin theme \u003c= 1.2.6 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54856",
"datePublished": "2026-10-29T15:24:01.171Z",
"dateReserved": "2026-06-16T09:22:06.969Z",
"dateUpdated": "2026-10-30T18:50:04.441Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54806 (GCVE-0-2026-54806)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:51 – Updated: 2026-06-17 15:29
VLAI
EPSS
VEX
Title
WordPress WP Activity Log plugin <= 5.6.3.1 - PHP Object Injection vulnerability
Summary
Unauthenticated PHP Object Injection in WP Activity Log <= 5.6.3.1 versions.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 13:43 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
Patchstack
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Melapress | WP Activity Log |
Affected:
n/a , ≤ 5.6.3.1
(custom)
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54806",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-17T13:43:19.668905Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-17T15:29:41.962Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"collectionURL": "https://wordpress.org/plugins",
"defaultStatus": "unaffected",
"packageName": "wp-security-audit-log",
"product": "WP Activity Log",
"vendor": "Melapress",
"versions": [
{
"changes": [
{
"at": "5.6.4",
"status": "unaffected"
}
],
"lessThanOrEqual": "5.6.3.1",
"status": "affected",
"version": "n/a",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "daroo | Patchstack Bug Bounty Program"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Unauthenticated PHP Object Injection in WP Activity Log \u003c= 5.6.3.1 versions."
}
],
"value": "Unauthenticated PHP Object Injection in WP Activity Log \u003c= 5.6.3.1 versions."
}
],
"impacts": [
{
"capecId": "CAPEC-586",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-586 Object Injection"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502 Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-17T09:51:45.282Z",
"orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"shortName": "Patchstack"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://patchstack.com/database/wordpress/plugin/wp-security-audit-log/vulnerability/wordpress-wp-activity-log-plugin-5-6-3-1-php-object-injection-vulnerability?_s_id=cve"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Update the WordPress WP Activity Log Plugin to the latest available version (at least 5.6.4)."
}
],
"value": "Update the WordPress WP Activity Log Plugin to the latest available version (at least 5.6.4)."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "WordPress WP Activity Log plugin \u003c= 5.6.3.1 - PHP Object Injection vulnerability",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
"assignerShortName": "Patchstack",
"cveId": "CVE-2026-54806",
"datePublished": "2026-06-17T09:51:45.282Z",
"dateReserved": "2026-06-16T09:21:34.477Z",
"dateUpdated": "2026-06-17T15:29:41.962Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54752 (GCVE-0-2026-54752)
Vulnerability from cvelistv5 – Published: 2026-09-17 19:56 – Updated: 2026-09-21 21:11
VLAI
EPSS
VEX
Title
NetBox Device Type Library: Insecure Pickle Deserialization in Test Suite Allows Remote Code Execution via Malicious Pull Request
Summary
NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The validation test harness can deserialize pull-request-controlled tracked pickle cache files through pickle.load in the read_pickle_data function in tests/pickle_operations.py. An unauthenticated contributor can change USE_LOCAL_KNOWN_SLUGS in tests/test_configuration.py and supply a crafted tests/known-modules.pickle or tests/known-racks.pickle file that tests/definitions_test.py loads when pytest runs. Deserialization invokes attacker-controlled object reduction behavior, allowing arbitrary code execution in the GitHub Actions runner or in a maintainer process that runs the tests, with the confidentiality, integrity, and availability of reachable resources at risk. This vulnerability is fixed with commit 1c6f7e2b93589b965318c6e67ac3504831f0e71e.
Severity
9.6 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 21:10 UTC
CWE
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/netbox-community/devicetype-li… | x_refsource_CONFIRM |
| https://github.com/netbox-community/devicetype-li… | x_refsource_MISC |
| https://github.com/netbox-community/devicetype-li… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| netbox-community | devicetype-library |
Affected:
< 1c6f7e2b93589b965318c6e67ac3504831f0e71e
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54752",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-21T21:10:56.822612Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-21T21:11:24.708Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-492p-5wp7-2w7c"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "devicetype-library",
"vendor": "netbox-community",
"versions": [
{
"status": "affected",
"version": "\u003c 1c6f7e2b93589b965318c6e67ac3504831f0e71e"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The validation test harness can deserialize pull-request-controlled tracked pickle cache files through pickle.load in the read_pickle_data function in tests/pickle_operations.py. An unauthenticated contributor can change USE_LOCAL_KNOWN_SLUGS in tests/test_configuration.py and supply a crafted tests/known-modules.pickle or tests/known-racks.pickle file that tests/definitions_test.py loads when pytest runs. Deserialization invokes attacker-controlled object reduction behavior, allowing arbitrary code execution in the GitHub Actions runner or in a maintainer process that runs the tests, with the confidentiality, integrity, and availability of reachable resources at risk. This vulnerability is fixed with commit 1c6f7e2b93589b965318c6e67ac3504831f0e71e."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.6,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-829",
"description": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-17T19:56:16.136Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-492p-5wp7-2w7c",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-492p-5wp7-2w7c"
},
{
"name": "https://github.com/netbox-community/devicetype-library/pull/4238",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/netbox-community/devicetype-library/pull/4238"
},
{
"name": "https://github.com/netbox-community/devicetype-library/commit/1c6f7e2b93589b965318c6e67ac3504831f0e71e",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/netbox-community/devicetype-library/commit/1c6f7e2b93589b965318c6e67ac3504831f0e71e"
}
],
"source": {
"advisory": "GHSA-492p-5wp7-2w7c",
"discovery": "UNKNOWN"
},
"title": "NetBox Device Type Library: Insecure Pickle Deserialization in Test Suite Allows Remote Code Execution via Malicious Pull Request"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-54752",
"datePublished": "2026-09-17T19:56:16.136Z",
"dateReserved": "2026-06-15T23:12:41.965Z",
"dateUpdated": "2026-09-21T21:11:24.708Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54512 (GCVE-0-2026-54512)
Vulnerability from cvelistv5 – Published: 2026-06-23 20:56 – Updated: 2026-06-24 15:22
VLAI
EPSS
VEX
Title
jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation
Summary
jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind's PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains <), DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring before <) against the configured PTV. If the container type is approved, the method parses the full canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type without ever validating the nested type arguments against the PTV. The nested type arguments are then resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type ID can therefore place a denied class as a generic type parameter of an allowed container — for example java.util.ArrayList<com.evil.Gadget> when only java.util.ArrayList is allow-listed. The container passes the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.
Severity
8.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 14:54 UTC
Assigner
GitHub_M
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FasterXML/jackson-databind/sec… | x_refsource_CONFIRM |
| https://github.com/FasterXML/jackson-databind/iss… | x_refsource_MISC |
| https://github.com/FasterXML/jackson-databind/com… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FasterXML | jackson-databind |
Affected:
>= 2.10.0, < 2.18.8
Affected: >= 2.19.0, < 2.21.4 Affected: >= 3.0.0, < 3.1.4 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54512",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-24T14:54:06.511108Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-24T15:22:43.268Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c7qm"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "jackson-databind",
"vendor": "FasterXML",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.10.0, \u003c 2.18.8"
},
{
"status": "affected",
"version": "\u003e= 2.19.0, \u003c 2.21.4"
},
{
"status": "affected",
"version": "\u003e= 3.0.0, \u003c 3.1.4"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, jackson-databind\u0027s PolymorphicTypeValidator (PTV) is the primary safety mechanism guarding polymorphic deserialization. When polymorphic typing is enabled and a type identifier contains generic parameters (i.e. the type ID string contains \u003c), DatabindContext._resolveAndValidateGeneric() validates only the raw container class name (the substring before \u003c) against the configured PTV. If the container type is approved, the method parses the full canonical type string via TypeFactory.constructFromCanonical() and returns the fully parameterized type without ever validating the nested type arguments against the PTV. The nested type arguments are then resolved, instantiated, and populated as beans during deserialization. An attacker who controls the type ID can therefore place a denied class as a generic type parameter of an allowed container \u2014 for example java.util.ArrayList\u003ccom.evil.Gadget\u003e when only java.util.ArrayList is allow-listed. The container passes the PTV check; com.evil.Gadget is loaded via Class.forName(name, true, loader), instantiated, and its properties are set from attacker-controlled JSON. This completely bypasses an explicitly configured PTV allow-list. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-184",
"description": "CWE-184: Incomplete List of Disallowed Inputs",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-23T20:56:36.646Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c7qm",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-j3rv-43j4-c7qm"
},
{
"name": "https://github.com/FasterXML/jackson-databind/issues/5988",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/FasterXML/jackson-databind/issues/5988"
},
{
"name": "https://github.com/FasterXML/jackson-databind/commit/434d6c511de7fdd9872f29157aafb6162d12d8d5",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/FasterXML/jackson-databind/commit/434d6c511de7fdd9872f29157aafb6162d12d8d5"
}
],
"source": {
"advisory": "GHSA-j3rv-43j4-c7qm",
"discovery": "UNKNOWN"
},
"title": "jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-54512",
"datePublished": "2026-06-23T20:56:36.646Z",
"dateReserved": "2026-06-15T18:01:15.513Z",
"dateUpdated": "2026-06-24T15:22:43.268Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-54499 (GCVE-0-2026-54499)
Vulnerability from cvelistv5 – Published: 2026-07-08 22:23 – Updated: 2026-07-09 13:13
VLAI
EPSS
VEX
Title
Stanza: Remote Code Execution via Unsafe Pickle Deserialization in Model Loaders
Summary
Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.12.2, Stanza model loaders such as stanza.models.common.pretrain.Pretrain.load() attempt torch.load(..., weights_only=True) but fall back to torch.load(..., weights_only=False) on attacker-controllable pickle.UnpicklingError, allowing a malicious .pt pretrain or model file to execute arbitrary pickle code when a Stanza NLP pipeline loads it. This issue is fixed in version 1.12.2.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:13 UTC
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/stanfordnlp/stanza/security/ad… | x_refsource_CONFIRM |
| https://github.com/stanfordnlp/stanza/pull/1587 | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/commit/b745… | x_refsource_MISC |
| https://github.com/stanfordnlp/stanza/releases/ta… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| stanfordnlp | stanza |
Affected:
< 1.12.2
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-54499",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-09T13:13:21.918884Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-09T13:13:28.368Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "stanza",
"vendor": "stanfordnlp",
"versions": [
{
"status": "affected",
"version": "\u003c 1.12.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Stanza is a Stanford NLP Python library for tokenization, sentence segmentation, NER, and parsing of many human languages. Prior to 1.12.2, Stanza model loaders such as stanza.models.common.pretrain.Pretrain.load() attempt torch.load(..., weights_only=True) but fall back to torch.load(..., weights_only=False) on attacker-controllable pickle.UnpicklingError, allowing a malicious .pt pretrain or model file to execute arbitrary pickle code when a Stanza NLP pipeline loads it. This issue is fixed in version 1.12.2."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"description": "CWE-502: Deserialization of Untrusted Data",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-676",
"description": "CWE-676: Use of Potentially Dangerous Function",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-08T22:23:02.664Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/stanfordnlp/stanza/security/advisories/GHSA-v5jw-96jm-7h2c"
},
{
"name": "https://github.com/stanfordnlp/stanza/pull/1587",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/stanfordnlp/stanza/pull/1587"
},
{
"name": "https://github.com/stanfordnlp/stanza/commit/b745008c68c9e50ccb5acd537cb6f2453f8b7ad4",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/stanfordnlp/stanza/commit/b745008c68c9e50ccb5acd537cb6f2453f8b7ad4"
},
{
"name": "https://github.com/stanfordnlp/stanza/releases/tag/v1.12.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/stanfordnlp/stanza/releases/tag/v1.12.2"
}
],
"source": {
"advisory": "GHSA-v5jw-96jm-7h2c",
"discovery": "UNKNOWN"
},
"title": "Stanza: Remote Code Execution via Unsafe Pickle Deserialization in Model Loaders"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-54499",
"datePublished": "2026-07-08T22:23:02.664Z",
"dateReserved": "2026-06-15T18:01:15.511Z",
"dateUpdated": "2026-07-09T13:13:28.368Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
Mitigation
Architecture and Design
Implementation
If available, use the signing/sealing features of the programming language to assure that deserialized data has not been tainted. For example, a hash-based message authentication code (HMAC) could be used to ensure that data has not been modified.
Mitigation
Implementation
When deserializing data, populate a new object rather than just deserializing. The result is that the data flows through safe input validation and that the functions are safe.
Mitigation
Implementation
Explicitly define a final object() to prevent deserialization.
Mitigation
Architecture and Design
Implementation
- Make fields transient to protect them from deserialization.
- An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.
Mitigation
Implementation
Avoid having unnecessary types or gadgets (a sequence of instances and method invocations that can self-execute during the deserialization process, often found in libraries) available that can be leveraged for malicious ends. This limits the potential for unintended or unauthorized types and gadgets to be leveraged by the attacker. Add only acceptable classes to an allowlist. Note: new gadgets are constantly being discovered, so this alone is not a sufficient mitigation.
Mitigation
Architecture and Design
Implementation
Employ cryptography of the data or code for protection. However, it's important to note that it would still be client-side security. This is risky because if the client is compromised then the security implemented on the client (the cryptography) can be bypassed.
Mitigation MIT-29
Operation
Strategy: Firewall
Use an application firewall that can detect attacks against this weakness. It can be beneficial in cases in which the code cannot be fixed (because it is controlled by a third party), as an emergency prevention measure while more comprehensive software assurance measures are applied, or to provide defense in depth [REF-1481].
CAPEC-586: Object Injection
An adversary attempts to exploit an application by injecting additional, malicious content during its processing of serialized objects. Developers leverage serialization in order to convert data or state into a static, binary format for saving to disk or transferring over a network. These objects are then deserialized when needed to recover the data/state. By injecting a malformed object into a vulnerable application, an adversary can potentially compromise the application by manipulating the deserialization process. This can result in a number of unwanted outcomes, including remote code execution.