Common Weakness Enumeration
CWE-347
AllowedImproper Verification of Cryptographic Signature
Abstraction: Base · Status: Draft
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
688 vulnerabilities reference this CWE, most recent first.
CVE-2026-94212 (GCVE-0-2026-94212)
Vulnerability from cvelistv5 – Published: 2026-10-01 11:01 – Updated: 2026-10-01 14:52
VLAI
EPSS
VEX
Title
Apache APISIX: unauthenticated impersonation issue in saml-auth
Summary
Improper verification of cryptographic signature vulnerability in Apache APISIX.
Any unauthenticated attacker could impersonate any user on every route protected by the saml-auth plugin under default configuration. This issue affects Apache APISIX: from 3.17.0 through 3.18.0.
Users are recommended to upgrade to version 3.19.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 14:52 UTC
CWE
- CWE-347 - Improper verification of cryptographic signature
Assigner
apache
CNA
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache APISIX |
Affected:
3.17.0 , ≤ 3.18.0
(semver)
|
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CVE-2026-93998 (GCVE-0-2026-93998)
Vulnerability from cvelistv5 – Published: 2026-11-05 17:15 – Updated: 2026-11-06 19:44
VLAI
EPSS
VEX
Title
Keycloak-core: keycloak-core: saml adapter does not bind signed assertions to the configured identity provider issuer
Summary
A flaw was found in the SAML adapter component of Keycloak, which is used to secure applications with SAML-based authentication. The adapter fails to verify that the issuer of a signed SAML assertion matches the expected identity provider configured for the application. If multiple identity providers share the same trusted signing key, an attacker who controls one of those providers can create a validly signed assertion to log into the application as any user, potentially gaining full administrative control.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-05 18:48 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
redhat
CNA
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:95759 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:95760 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:95761 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:95762 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-93998 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2537164 | issue-trackingx_refsource_REDHAT |
Impacted products
14 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4.17-2 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-29 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4 |
Unaffected:
26.4-30 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.4::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.4.17 |
cpe:/a:redhat:build_keycloak:26.4::el9
|
|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6.8-2 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6 |
Unaffected:
26.6-24 , < *
(rpm)
cpe:/a:redhat:build_keycloak:26.6::el9 |
|
| Red Hat | Red Hat build of Keycloak 26.6.8 |
cpe:/a:redhat:build_keycloak:26.6::el9
|
|
| Red Hat | Red Hat AMQ Broker 7 |
cpe:/a:redhat:amq_broker:7
|
|
| Red Hat | Red Hat Fuse 7 |
cpe:/a:redhat:jboss_fuse:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 |
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 |
cpe:/a:redhat:jboss_enterprise_application_platform:8
|
|
| Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack |
cpe:/a:redhat:jbosseapxp
|
|
| Red Hat | Red Hat Satellite 6 |
cpe:/a:redhat:satellite:6
|
|
| Red Hat | Red Hat Single Sign-On 7 |
cpe:/a:redhat:red_hat_single_sign_on:7
|
Date Public
2026-11-05 00:00
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CVE-2026-93657 (GCVE-0-2026-93657)
Vulnerability from cvelistv5 – Published: 2026-09-18 14:23 – Updated: 2026-09-21 20:51
VLAI
EPSS
VEX
Title
hickory-resolver before 0.26.2 DNSSEC Validation Bypass
Summary
hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-21 16:28 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/hickory-dns/hickory-dns/securi… | vendor-advisory |
| https://github.com/hickory-dns/hickory-dns/commit… | patch |
| https://github.com/hickory-dns/hickory-dns/pull/3871 | patchissue-tracking |
| https://github.com/hickory-dns/hickory-dns/releas… | release-notes |
| https://github.com/hickory-dns/hickory-dns | product |
| https://www.vulncheck.com/advisories/hickory-reso… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| hickory-dns | hickory-resolver |
Affected:
0 , < 0.26.2
(semver)
Unaffected: 0.26.2 (semver) |
Date Public
2026-09-03 21:04
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CVE-2026-92718 (GCVE-0-2026-92718)
Vulnerability from cvelistv5 – Published: 2026-09-16 17:31 – Updated: 2026-09-24 14:22
VLAI
EPSS
VEX
Title
Nuclei from 3.7.0 before 3.11.1 Template Signature Bypass via Modification-Time-Only Cache
Summary
Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verified templates with unsigned malicious content and restore the original modification time to bypass signature checks and execute arbitrary operating system commands.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 18:15 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
VulnCheck
CNA
References
6 references
| URL | Tags |
|---|---|
| https://github.com/projectdiscovery/nuclei/issues/7663 | issue-tracking |
| https://github.com/projectdiscovery/nuclei | product |
| https://github.com/projectdiscovery/nuclei/blob/v… | technical-description |
| https://github.com/projectdiscovery/nuclei/blob/v… | technical-description |
| https://github.com/projectdiscovery/nuclei/commit… | patch |
| https://www.vulncheck.com/advisories/nuclei-from-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| projectdiscovery | nuclei |
Affected:
3.7.0 , < 3.11.1
(semver)
cpe:2.3:a:projectdiscovery:nuclei:*:*:*:*:*:*:*:* |
Date Public
2026-08-17 00:00
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CVE-2026-91908 (GCVE-0-2026-91908)
Vulnerability from cvelistv5 – Published: 2026-11-02 12:23 – Updated: 2026-11-03 15:39
VLAI
EPSS
VEX
Summary
Dell OpenManage Enterprise, versions prior to 4.8.0, contains an Improper Verification of Cryptographic Signature vulnerability. A high privileged attacker with adjacent network access could potentially exploit this vulnerability, leading to Code execution.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 04:55 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00052322… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | OpenManage Enterprise |
Affected:
0 , < 4.8.0 or later
(semver)
|
Date Public
2026-10-19 06:30
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CVE-2026-91905 (GCVE-0-2026-91905)
Vulnerability from cvelistv5 – Published: 2026-11-02 12:38 – Updated: 2026-11-03 15:39
VLAI
EPSS
VEX
Summary
Dell OpenManage Enterprise, versions prior to 4.8.0, contains an Improper Verification of Cryptographic Signature vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Filesystem access for attacker.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 04:55 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00052322… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | OpenManage Enterprise |
Affected:
0 , < 4.8.0 or later
(semver)
|
Date Public
2026-10-19 06:30
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CVE-2026-91899 (GCVE-0-2026-91899)
Vulnerability from cvelistv5 – Published: 2026-11-02 20:02 – Updated: 2026-11-03 04:56
VLAI
EPSS
VEX
Summary
Dell Alienware Command Center (AWCC), versions prior to 6.14.54.0, contain an Improper Verification of Cryptographic Signature vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privilege and Arbitrary Code Execution.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 00:00 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00051224… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Alienware Command Center (AWCC) |
Affected:
0 , < 6.14.54.0
(semver)
|
Date Public
2026-11-02 20:01
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CVE-2026-91898 (GCVE-0-2026-91898)
Vulnerability from cvelistv5 – Published: 2026-11-02 19:54 – Updated: 2026-11-03 15:39
VLAI
EPSS
VEX
Summary
Dell Alienware Command Center (AWCC), versions prior to 6.14.54.0, contain an Improper Verification of Cryptographic Signature vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Arbitrary Code Execution and Elevation of Privilege.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-03 04:56 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
dell
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.dell.com/support/kbdoc/en-us/00051224… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Dell | Alienware Command Center (AWCC) |
Affected:
0 , < 6.14.54.0
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|
Date Public
2026-11-02 19:52
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CVE-2026-91814 (GCVE-0-2026-91814)
Vulnerability from cvelistv5 – Published: 2026-09-23 07:49 – Updated: 2026-09-23 14:24
VLAI
EPSS
VEX
Title
Security vulnerability: Foxit PDF Editor/Reader Fails to Detect Modifications to Signed Documents Displaying Newly Added Content
Summary
A signature validation vulnerability exists in Foxit PDF Editor/Reader’s handling of incrementally updated PDF documents. Changes to visible document content may not invalidate the existing signature, allowing attackers to alter signed content and potentially carry out content spoofing while the document continues to appear validly signed.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:24 UTC
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
Foxit
CNA
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2026.2 and earlier
Affected: Versions 14.0.7 and earlier Affected: Versions 13.2.6 and earlier |
|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2026.2 and earlier
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CVE-2026-91191 (GCVE-0-2026-91191)
Vulnerability from cvelistv5 – Published: 2026-09-29 21:04 – Updated: 2026-09-30 15:28
VLAI
EPSS
VEX
Title
Lantronix G520 Series Cellular Gateway Improper Verification of Cryptographic Signature
Summary
The device's update mechanism includes conditions that allow unauthorized software packages to be accepted as authentic. During the boot process, the stock done function disables signature verification in the OPKG configuration before restoring optional packages from a writable, unsigned feed. Separately, the publicly distributed SDK contains the production private key whose corresponding public key is trusted by both stable and beta firmware builds. Either issue undermines package authenticity, and together they allow an attacker to provide packages that appear valid to the system. Even if signature enforcement is restored, the exposed production key enables an attacker to generate signatures that the device will continue to trust. An attacker who can supply a malicious package may be able to execute arbitrary code with root privileges during installation.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 15:03 UTC
CWE
Assigner
icscert
CNA
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Lantronix | G520 Series |
Affected:
2.6.0.4R6 stable
|
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-347",
"description": "CWE-347",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-29T21:04:52.546Z",
"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"shortName": "icscert"
},
"references": [
{
"url": "https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528"
},
{
"url": "https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/"
},
{
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-272-01"
},
{
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-272-01.json"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
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"base64": false,
"type": "text/html",
"value": "Lantronix has addressed the reported issues with release version 2.6.0.7R6 which is available on their website.\u003cbr\u003e\u003cdiv\u003e\u003ca href=\"https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528\"\u003ehttps://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528\u003c/a\u003e\u003c/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c/div\u003e\u003cdiv\u003e\n\u003cp\u003eFor more information, see the Lantronix Vulnerability Library.\u003cbr\u003e\u003ca href=\"https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/\"\u003ehttps://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/\u003c/a\u003e\u003c/p\u003e\u003cp\u003eFor more information or technical assistance, contact Lantronix support: Support@lantronix.com\u003cbr\u003e\u003ca href=\"mailto:Support@lantronix.com\"\u003emailto:Support@lantronix.com\u003c/a\u003e\u003c/p\u003e\n\n\u003c/div\u003e"
}
],
"value": "Lantronix has addressed the reported issues with release version 2.6.0.7R6 which is available on their website.\n https://ltrxdev.atlassian.net/wiki/spaces/LTRXTS/pages/1889828865/Latest+firmware+for+the+G520+Series+G526+G526RP+G527+G528 \n\n\n\n\n\n\n\nFor more information, see the Lantronix Vulnerability Library.\n https://www.lantronix.com/technical-support/security-updates/vulnerability-disclosure-policy/vulnerability-library/ \n\n\n\nFor more information or technical assistance, contact Lantronix support: Support@lantronix.com\n mailto:Support@lantronix.com"
}
],
"source": {
"advisory": "ICSA-26-272-01",
"discovery": "EXTERNAL"
},
"title": "Lantronix G520 Series Cellular Gateway Improper Verification of Cryptographic Signature",
"x_generator": {
"engine": "Vulnogram 1.0.5"
}
}
},
"cveMetadata": {
"assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
"assignerShortName": "icscert",
"cveId": "CVE-2026-91191",
"datePublished": "2026-09-29T21:04:52.546Z",
"dateReserved": "2026-09-17T19:24:31.384Z",
"dateUpdated": "2026-09-30T15:28:15.769Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
No mitigation information available for this CWE.
CAPEC-463: Padding Oracle Crypto Attack
An adversary is able to efficiently decrypt data without knowing the decryption key if a target system leaks data on whether or not a padding error happened while decrypting the ciphertext. A target system that leaks this type of information becomes the padding oracle and an adversary is able to make use of that oracle to efficiently decrypt data without knowing the decryption key by issuing on average 128*b calls to the padding oracle (where b is the number of bytes in the ciphertext block). In addition to performing decryption, an adversary is also able to produce valid ciphertexts (i.e., perform encryption) by using the padding oracle, all without knowing the encryption key.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.