Vulnerability Description
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.
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2026-119208?
CVE-2026-119208 is a documented vulnerability. 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 ...
How severe is CVE-2026-119208?
CVSS scoring is not yet available for CVE-2026-119208. Check NVD for updates.
Is there a patch for CVE-2026-119208?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.