CVE-2026-119208

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.3, pypdf can consume excessive time and memory when an application accesses the page count of a crafted encrypted PDF whose page tree declares a forged /Count value. Even after successful decryption, page-count retrieval trusts the unvalidated declared count instead of walking the page tree, allowing the attacker-controlled value to drive excessive work and memory use. This issue is fixed in version 6.21.3.

CVSS

No CVSS.

References

Link	Resource
https://github.com/py-pdf/pypdf/commit/82b91951dc74496bb3efe6465434f041bb6a5e6b
https://github.com/py-pdf/pypdf/pull/4270
https://github.com/py-pdf/pypdf/releases/tag/6.21.3
https://github.com/py-pdf/pypdf/security/advisories/GHSA-62m5-6wh8-28x7

Configurations

No configuration.

History

29 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-29 21:17

Updated : 2026-10-30 17:18

NVD link : CVE-2026-119208

Mitre link : CVE-2026-119208

CVE.ORG link : CVE-2026-119208

JSON object : View

Products Affected

No product.

CWE

CWE-400

Uncontrolled Resource Consumption

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