CVE-2026-59935

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.

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/5a33a46416aa1ae6c025ff90a3cca57631fdafd2	Patch
https://github.com/py-pdf/pypdf/pull/3892	Issue Tracking Patch
https://github.com/py-pdf/pypdf/releases/tag/6.14.2	Product Release Notes
https://github.com/py-pdf/pypdf/security/advisories/GHSA-g867-7843-wf8q	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

09 Jul 2026, 20:42

Type	Values Removed	Values Added
References	~~() https://github.com/py-pdf/pypdf/commit/5a33a46416aa1ae6c025ff90a3cca57631fdafd2 -~~	() https://github.com/py-pdf/pypdf/commit/5a33a46416aa1ae6c025ff90a3cca57631fdafd2 - Patch
References	~~() https://github.com/py-pdf/pypdf/pull/3892 -~~	() https://github.com/py-pdf/pypdf/pull/3892 - Issue Tracking, Patch
References	~~() https://github.com/py-pdf/pypdf/releases/tag/6.14.2 -~~	() https://github.com/py-pdf/pypdf/releases/tag/6.14.2 - Product, Release Notes
References	~~() https://github.com/py-pdf/pypdf/security/advisories/GHSA-g867-7843-wf8q -~~	() https://github.com/py-pdf/pypdf/security/advisories/GHSA-g867-7843-wf8q - Patch, Vendor Advisory
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

08 Jul 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-08 20:16

Updated : 2026-07-09 20:42

NVD link : CVE-2026-59935

Mitre link : CVE-2026-59935

CVE.ORG link : CVE-2026-59935

JSON object : View

Products Affected

pypdf_project

pypdf

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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