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67 vulnerabilities found for by py-pdf
CVE-2026-115585 (GCVE-0-2026-115585)
Vulnerability from cvelistv5
Published
2026-10-23 19:31
Modified
2026-10-23 19:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing crafted cross-reference streams to produce long runtimes. This issue is fixed in version 6.21.2.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"cna": {
"affected": [
{
"product": "pypdf",
"vendor": "py-pdf",
"versions": [
{
"status": "affected",
"version": "\u003c 6.21.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an incomplete remediation for repeated malformed cross-reference entries in GHSA-55h5-xmcq-c37v could still trigger a complete PDF stream reload during each recovery attempt even when a recovery cache was present, causing crafted cross-reference streams to produce long runtimes. This issue is fixed in version 6.21.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-407",
"description": "CWE-407: Inefficient Algorithmic Complexity",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T19:31:52.598Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-jr96-gvgh-j3r4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-jr96-gvgh-j3r4"
},
{
"name": "https://github.com/py-pdf/pypdf/pull/4240",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/pull/4240"
},
{
"name": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b"
},
{
"name": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2"
}
],
"source": {
"advisory": "GHSA-jr96-gvgh-j3r4",
"discovery": "UNKNOWN"
},
"title": "pypdf: Possible long runtimes for repeated malformed cross-reference entries (Follow-up)"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-115585",
"datePublished": "2026-10-23T19:31:52.598Z",
"dateReserved": "2026-10-22T22:53:15.238Z",
"dateUpdated": "2026-10-23T19:31:52.598Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-115580 (GCVE-0-2026-115580)
Vulnerability from cvelistv5
Published
2026-10-23 19:29
Modified
2026-10-23 19:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-834 - Excessive Iteration
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF with a standard cross-reference table whose declared entry count exceeds what the file can contain, causing excessive processing and long runtimes when the file is opened. This issue is fixed in version 6.21.2.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"cna": {
"affected": [
{
"product": "pypdf",
"vendor": "py-pdf",
"versions": [
{
"status": "affected",
"version": "\u003c 6.21.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF with a standard cross-reference table whose declared entry count exceeds what the file can contain, causing excessive processing and long runtimes when the file is opened. This issue is fixed in version 6.21.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-834",
"description": "CWE-834: Excessive Iteration",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T19:29:49.845Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-gmh7-3g9r-mjh5"
},
{
"name": "https://github.com/py-pdf/pypdf/pull/4239",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/pull/4239"
},
{
"name": "https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/commit/a3061e34b169d34478d520f5f049c53cfb1482b2"
},
{
"name": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2"
}
],
"source": {
"advisory": "GHSA-gmh7-3g9r-mjh5",
"discovery": "UNKNOWN"
},
"title": "pypdf: Possible long runtimes for large xref table header limits"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-115580",
"datePublished": "2026-10-23T19:29:49.845Z",
"dateReserved": "2026-10-22T22:53:15.238Z",
"dateUpdated": "2026-10-23T19:29:49.845Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-115572 (GCVE-0-2026-115572)
Vulnerability from cvelistv5
Published
2026-10-23 19:24
Modified
2026-10-23 19:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect object, causing relevant file parts such as pages to trigger repeated full-file recovery loads and long runtimes when accessed. This issue is fixed in version 6.21.2.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"cna": {
"affected": [
{
"product": "pypdf",
"vendor": "py-pdf",
"versions": [
{
"status": "affected",
"version": "\u003c 6.21.2"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "pypdf is a free and open-source pure-python PDF library. Prior to 6.21.2, an attacker can craft a PDF that repeatedly references the same nonexistent indirect object, causing relevant file parts such as pages to trigger repeated full-file recovery loads and long runtimes when accessed. This issue is fixed in version 6.21.2."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-23T19:24:51.055Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-6c7f-9265-g8fw",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-6c7f-9265-g8fw"
},
{
"name": "https://github.com/py-pdf/pypdf/pull/4240",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/pull/4240"
},
{
"name": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/commit/68a0e5046cc9e14a6c24a21a713f3c7fbde18b4b"
},
{
"name": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/pypdf/releases/tag/6.21.2"
}
],
"source": {
"advisory": "GHSA-6c7f-9265-g8fw",
"discovery": "UNKNOWN"
},
"title": "pypdf: Possible long runtimes for repeated references to the same missing object"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-115572",
"datePublished": "2026-10-23T19:24:51.055Z",
"dateReserved": "2026-10-22T22:53:15.238Z",
"dateUpdated": "2026-10-23T19:24:51.055Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-114610 (GCVE-0-2026-114610)
Vulnerability from cvelistv5
Published
2026-10-22 17:21
Modified
2026-10-22 17:21
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
fpdf2 is a PDF creation library for Python. From 2.5.0 until 2.8.8, fpdf2's SVGObject.build_xref() passes nested SVG <use> references to GraphicsContext.add_item(), whose default clone=True deep-copy behavior copies the complete referenced graphics tree during FPDF.image() processing. Repeating references at each nesting level makes the in-memory object count and processing work grow exponentially, allowing a small user-controlled SVG to consume excessive CPU and memory, raise MemoryError, fail PDF generation jobs, and reduce or exhaust worker capacity. ResourceAccessPolicy does not prevent the issue because the references are inline and require no external resource, XML entity, local file, or permissive network setting. This issue is fixed in version 2.8.8.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
"containers": {
"cna": {
"affected": [
{
"product": "fpdf2",
"vendor": "py-pdf",
"versions": [
{
"status": "affected",
"version": "\u003e= 2.5.0, \u003c 2.8.8"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "fpdf2 is a PDF creation library for Python. From 2.5.0 until 2.8.8, fpdf2\u0027s SVGObject.build_xref() passes nested SVG \u003cuse\u003e references to GraphicsContext.add_item(), whose default clone=True deep-copy behavior copies the complete referenced graphics tree during FPDF.image() processing. Repeating references at each nesting level makes the in-memory object count and processing work grow exponentially, allowing a small user-controlled SVG to consume excessive CPU and memory, raise MemoryError, fail PDF generation jobs, and reduce or exhaust worker capacity. ResourceAccessPolicy does not prevent the issue because the references are inline and require no external resource, XML entity, local file, or permissive network setting. This issue is fixed in version 2.8.8."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "CWE-770: Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T17:21:11.788Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/py-pdf/fpdf2/security/advisories/GHSA-wqw6-wpr3-45rh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/py-pdf/fpdf2/security/advisories/GHSA-wqw6-wpr3-45rh"
},
{
"name": "https://github.com/py-pdf/fpdf2/pull/1889",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/pull/1889"
},
{
"name": "https://github.com/py-pdf/fpdf2/commit/d7bd1061205d50da6a541dadfdb9d66beb763f2f",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/commit/d7bd1061205d50da6a541dadfdb9d66beb763f2f"
},
{
"name": "https://github.com/py-pdf/fpdf2/releases/tag/2.8.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/releases/tag/2.8.8"
}
],
"source": {
"advisory": "GHSA-wqw6-wpr3-45rh",
"discovery": "UNKNOWN"
},
"title": "fpdf2: Exponential SVG \u0027\u003cuse\u003e\u0027 expansion causes CPU and memory exhaustion in \u0027FPDF.image()\u0027"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-114610",
"datePublished": "2026-10-22T17:21:11.788Z",
"dateReserved": "2026-10-21T20:34:25.599Z",
"dateUpdated": "2026-10-22T17:21:11.788Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-114609 (GCVE-0-2026-114609)
Vulnerability from cvelistv5
Published
2026-10-22 17:18
Modified
2026-10-22 17:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Summary
fpdf2 is a PDF creation library for Python. Prior to 2.8.8, fpdf2's shared image loader automatically dereferences attacker-controlled HTTP(S) URLs and raw local paths supplied through FPDF.image(), FPDF.write_html() HTML <img src> values, SVG <image href> or xlink:href values, and template image fields. This can cause outbound requests to attacker-selected internal or external services and local file open attempts, although local content is exposed only when it is a valid supported image or SVG resource. file:// URLs are not specially handled, so the local-path case requires a raw filesystem path. This issue is fixed in version 2.8.8.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
{
"containers": {
"cna": {
"affected": [
{
"product": "fpdf2",
"vendor": "py-pdf",
"versions": [
{
"status": "affected",
"version": "\u003c 2.8.8"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "fpdf2 is a PDF creation library for Python. Prior to 2.8.8, fpdf2\u0027s shared image loader automatically dereferences attacker-controlled HTTP(S) URLs and raw local paths supplied through FPDF.image(), FPDF.write_html() HTML \u003cimg src\u003e values, SVG \u003cimage href\u003e or xlink:href values, and template image fields. This can cause outbound requests to attacker-selected internal or external services and local file open attempts, although local content is exposed only when it is a valid supported image or SVG resource. file:// URLs are not specially handled, so the local-path case requires a raw filesystem path. This issue is fixed in version 2.8.8."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-918",
"description": "CWE-918: Server-Side Request Forgery (SSRF)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T17:18:22.802Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/py-pdf/fpdf2/security/advisories/GHSA-rw7v-4hrq-x6r9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/py-pdf/fpdf2/security/advisories/GHSA-rw7v-4hrq-x6r9"
},
{
"name": "https://github.com/py-pdf/fpdf2/pull/1824",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/pull/1824"
},
{
"name": "https://github.com/py-pdf/fpdf2/pull/1857",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/pull/1857"
},
{
"name": "https://github.com/py-pdf/fpdf2/commit/0d27190a8c907e02ebe9cd881471a14d0622b432",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/commit/0d27190a8c907e02ebe9cd881471a14d0622b432"
},
{
"name": "https://github.com/py-pdf/fpdf2/commit/6e23f610b7946e96e9a5dd0535dcbfbe7ac1397d",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/commit/6e23f610b7946e96e9a5dd0535dcbfbe7ac1397d"
},
{
"name": "https://github.com/py-pdf/fpdf2/releases/tag/2.8.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/py-pdf/fpdf2/releases/tag/2.8.8"
}
],
"source": {
"advisory": "GHSA-rw7v-4hrq-x6r9",
"discovery": "UNKNOWN"
},
"title": "fpdf2 implicitly loads external URLs and local image paths when rendering attacker-controlled content"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-114609",
"datePublished": "2026-10-22T17:18:22.802Z",
"dateReserved": "2026-10-21T20:34:25.599Z",
"dateUpdated": "2026-10-22T17:18:22.802Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-113795 (GCVE-0-2026-113795)
Vulnerability from cvelistv5
Published
2026-10-21 16:01
Modified
2026-10-21 16:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, accessing a crafted PDF stream with a large number of filters or multiple filters that pass around large amounts of data can cause large memory consumption. This issue is fixed in version 6.20.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
{
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CVE-2026-113794 (GCVE-0-2026-113794)
Vulnerability from cvelistv5
Published
2026-10-21 15:59
Modified
2026-10-28 01:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
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}
],
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CVE-2026-113793 (GCVE-0-2026-113793)
Vulnerability from cvelistv5
Published
2026-10-21 15:57
Modified
2026-10-28 17:01
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-113792 (GCVE-0-2026-113792)
Vulnerability from cvelistv5
Published
2026-10-21 15:55
Modified
2026-10-23 15:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, calling PdfWriter.find_outline_item on a crafted PDF with a cyclic outline hierarchy can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-113791 (GCVE-0-2026-113791)
Vulnerability from cvelistv5
Published
2026-10-21 15:37
Modified
2026-10-21 15:37
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing a content stream with many small operations, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-113790 (GCVE-0-2026-113790)
Vulnerability from cvelistv5
Published
2026-10-21 15:35
Modified
2026-10-28 01:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF containing arrays or dictionaries with many elements, causing parsing to consume large amounts of memory. This issue is fixed in version 6.21.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-113789 (GCVE-0-2026-113789)
Vulnerability from cvelistv5
Published
2026-10-21 15:33
Modified
2026-10-28 16:42
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-113786 (GCVE-0-2026-113786)
Vulnerability from cvelistv5
Published
2026-10-21 14:38
Modified
2026-10-27 22:18
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.21.1, an attacker can craft a PDF containing image data labeled with the /DCTDecode filter that causes Pillow to select and invoke an unintended image parser when the image is loaded. Environments without the optional Pillow dependency are not affected. This issue is fixed in version 6.21.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-103000 (GCVE-0-2026-103000)
Vulnerability from cvelistv5
Published
2026-09-30 20:13
Modified
2026-09-30 20:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF can provide unusually large alphabetical page-label values that cause pypdf/_page_labels.py to generate strings beyond a reasonable page-label length when an application retrieves document page labels, consuming excessive memory and potentially making the application unavailable. This issue is fixed in version 6.19.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102999 (GCVE-0-2026-102999)
Vulnerability from cvelistv5
Published
2026-09-30 20:10
Modified
2026-10-01 18:51
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF containing many embedded files can cause the dictionary-based attachments API in pypdf/_doc_common.py to reparse the full attachment list for each content lookup, producing repeated work and long runtimes when an application accesses the embedded-file mapping. This issue is fixed in version 6.19.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102998 (GCVE-0-2026-102998)
Vulnerability from cvelistv5
Published
2026-09-30 20:09
Modified
2026-09-30 20:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.19.0, a crafted PDF with form field values can cause pypdf/generic/_appearance_stream.py appearance-stream generation to repeat invariant selection-data work inside a loop when an application updates fields with flattening enabled, resulting in excessive runtimes and application unavailability. This issue is fixed in version 6.19.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102997 (GCVE-0-2026-102997)
Vulnerability from cvelistv5
Published
2026-09-30 20:05
Modified
2026-10-02 16:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF containing a partially malformed /FlateDecode stream with padded data can force pypdf/filters.py to use inefficient byte-by-byte decompression while the earlier recovery counter fails to advance for bytes that successfully decode, causing long runtimes and application unavailability. This is a residual issue after the malformed FlateDecode recovery fix. This issue is fixed in version 6.18.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102996 (GCVE-0-2026-102996)
Vulnerability from cvelistv5
Published
2026-09-30 20:03
Modified
2026-09-30 20:48
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can provide a TrueType or Type1 simple font with an unusually large /Widths array, causing pypdf/_font.py Font._collect_tt_t1_character_widths to process entries beyond the 256 character codes meaningful for a simple font and consume excessive memory during operations such as text extraction. This issue is fixed in version 6.18.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102995 (GCVE-0-2026-102995)
Vulnerability from cvelistv5
Published
2026-09-30 20:01
Modified
2026-10-01 18:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.1, a crafted PDF can place unusually large source-code or destination-string tokens in a font /ToUnicode mapping, causing pypdf/_cmap.py parse_bfchar to decode and retain oversized values during operations such as text extraction and consume excessive memory. This is a second follow-up to earlier /ToUnicode resource-consumption fixes and is limited to the remaining token-length path. This issue is fixed in version 6.18.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102994 (GCVE-0-2026-102994)
Vulnerability from cvelistv5
Published
2026-09-30 19:57
Modified
2026-09-30 20:50
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.18.0, a crafted PDF containing indirect-object identifiers or generation-number tokens that continue for a long time without whitespace can cause pypdf/_reader.py and pypdf/generic/_base.py to scan excessive input through read_until_whitespace, resulting in long runtimes and application unavailability. This issue is fixed in version 6.18.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-102993 (GCVE-0-2026-102993)
Vulnerability from cvelistv5
Published
2026-09-30 19:55
Modified
2026-10-02 16:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.17.0, a crafted PDF can provide unusually large Roman page-label values that cause pypdf/_page_labels.py to generate excessively large numeral strings when an application retrieves document page labels, consuming large amounts of memory and potentially making the application unavailable. This issue is fixed in version 6.17.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-84311 (GCVE-0-2026-84311)
Vulnerability from cvelistv5
Published
2026-09-01 20:03
Modified
2026-09-02 16:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-834 - Excessive Iteration
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_page.py PageObject._extract_text and PageObject.extract_xform_text to traverse a directed acyclic graph of reused form XObjects in which each form invokes a child multiple times, creating exponentially many traversal paths and causing long runtimes and large memory consumption. This issue is fixed in version 6.16.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-84310 (GCVE-0-2026-84310)
Vulnerability from cvelistv5
Published
2026-09-01 20:00
Modified
2026-09-04 02:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.1, an attacker can craft a PDF that causes pypdf/_doc_common.py _get_outline to consume long runtimes and large amounts of memory when retrieving document outlines with large numbers of entries or deeply nested reused paths because the traversal lacked global entry-count and nesting-depth limits. This issue is fixed in version 6.16.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-84309 (GCVE-0-2026-84309)
Vulnerability from cvelistv5
Published
2026-09-01 19:58
Modified
2026-09-02 13:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.16.0, an attacker can craft a PDF whose cyclic tree structure causes pypdf/generic/_data_structures.py TreeObject.insert_child to follow /Next links indefinitely when a writing code path inserts a child, producing an infinite loop. This issue is fixed in version 6.16.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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}
],
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{
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"advisory": "GHSA-jp53-mhqp-8xcg",
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CVE-2026-82398 (GCVE-0-2026-82398)
Vulnerability from cvelistv5
Published
2026-08-31 21:41
Modified
2026-09-01 14:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, an attacker can craft a PDF that causes long runtimes when the pypdf/_utils.py function read_until_whitespace reads a stream containing a long run of bytes without whitespace. The function repeatedly performs immutable bytes concatenation in a one-byte loop, causing quadratic processing cost for the long non-whitespace input. This issue is fixed in version 6.15.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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{
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"title": "pypdf: Inefficient handling of non-whitespace inputs in read_until_whitespace"
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CVE-2026-71870 (GCVE-0-2026-71870)
Vulnerability from cvelistv5
Published
2026-08-07 19:28
Modified
2026-08-10 12:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause large memory consumption when pypdf/_cmap.py function parse_bfrange parses unusually large source-code or destination-string tokens in a font /ToUnicode CMap during text extraction. This issue is fixed in 6.15.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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}
],
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CVE-2026-71852 (GCVE-0-2026-71852)
Vulnerability from cvelistv5
Published
2026-08-07 18:53
Modified
2026-08-10 12:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-834 - Excessive Iteration
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/_font.py function Font._collect_cid_character_widths expands unusually large CID font /W width ranges or excessive width entries during text extraction. This issue is fixed in 6.15.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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],
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CVE-2026-59936 (GCVE-0-2026-59936)
Vulnerability from cvelistv5
Published
2026-07-08 19:34
Modified
2026-07-09 13:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.1, an attacker can craft a PDF with a page content stream containing a not terminated inline image, causing an infinite loop during inline image end marker detection such as when extracting page text. This issue is fixed in version 6.14.1.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-59935 (GCVE-0-2026-59935)
Vulnerability from cvelistv5
Published
2026-07-08 19:34
Modified
2026-07-09 13:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.2, an attacker can craft a PDF with a page content stream containing a not terminated inline image that uses the ASCII85 or ASCIIHex filters, causing an infinite loop during parsing such as when extracting page text. This issue is fixed in version 6.14.2.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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CVE-2026-59937 (GCVE-0-2026-59937)
Vulnerability from cvelistv5
Published
2026-07-08 17:25
Modified
2026-07-09 14:41
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-400 - Uncontrolled Resource Consumption
Summary
pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with repeated malformed cross-reference streams that cause pypdf to spend long runtimes recovering broken cross-reference table entries. This issue is fixed in version 6.14.0.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
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