GHSA-cggf-277g-3q54High
pypdf has possible large memory usage when parsing page tree
🔗 CVE IDs covered (1)
📋 Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing the page tree with many shared resources.
Patches
This has been fixed in pypdf==6.21.4.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #4290.
🎯 Affected products1
- pip/pypdf:< 6.21.4
🔗 References (6)
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-cggf-277g-3q54
- https://nvd.nist.gov/vuln/detail/CVE-2026-119204
- https://github.com/py-pdf/pypdf/pull/4290
- https://github.com/py-pdf/pypdf/commit/ea4ac663133f1b3de1d7a8f2e6fa239802fde79e
- https://github.com/py-pdf/pypdf/releases/tag/6.21.4
- https://github.com/advisories/GHSA-cggf-277g-3q54