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

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) pypdf es una biblioteca PDF gratuita y de código abierto escrita íntegramente en Python. Antes de la versión 6.14.2, un atacante puede crear un PDF con un flujo de contenido de página que contenga una imagen en línea no terminada que utilice los filtros ASCII85 o ASCIIHex, lo que provoca un bucle infinito durante el análisis, como al extraer texto de la página. Este problema está solucionado en la versión 6.14.2.

Information

Published : 2026-07-08 20:16

Updated : 2026-10-25 17:10

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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