CVE-2026-59936

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b	Patch
https://github.com/py-pdf/pypdf/pull/3891	Issue Tracking Patch
https://github.com/py-pdf/pypdf/releases/tag/6.14.1	Product Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*

History

09 Jul 2026, 20:41

Type	Values Removed	Values Added
First Time		Pypdf Project Pypdf Project pypdf
CPE		cpe:2.3:a:pypdf_project:pypdf::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
References	~~() https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b -~~	() https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b - Patch
References	~~() https://github.com/py-pdf/pypdf/pull/3891 -~~	() https://github.com/py-pdf/pypdf/pull/3891 - Issue Tracking, Patch
References	~~() https://github.com/py-pdf/pypdf/releases/tag/6.14.1 -~~	() https://github.com/py-pdf/pypdf/releases/tag/6.14.1 - Product, Release Notes
References	~~() https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr -~~	() https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr - Patch, Vendor Advisory

08 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-08 20:16

Updated : 2026-07-09 20:41

NVD link : CVE-2026-59936

Mitre link : CVE-2026-59936

CVE.ORG link : CVE-2026-59936

JSON object : View

Products Affected

pypdf_project

pypdf

CWE

CWE-400

Uncontrolled Resource Consumption

{"id": "CVE-2026-59936", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59936", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-09T13:26:41.429218Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.7, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "py-pdf", "product": "pypdf", "versions": [{"status": "affected", "version": "< 6.14.1"}]}]}], "published": "2026-07-08T20:16:59.403", "references": [{"url": "https://github.com/py-pdf/pypdf/commit/ec3b14596186c40caca7cf8ab9b2155203e01b5b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/py-pdf/pypdf/pull/3891", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/py-pdf/pypdf/releases/tag/6.14.1", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/py-pdf/pypdf/security/advisories/GHSA-5xf7-4p34-54qr", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-400"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-09T20:41:41.110", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:pypdf_project:pypdf:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBEF5EAD-67B5-4028-9729-87300447366E", "versionEndExcluding": "6.14.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}