Résumé
pypdf: Possible long runtimes for repeated malformed cross-reference entries
Détails de l’avis
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams.
Patches
This has been fixed in pypdf==6.14.0.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3887.
Références
- https://github.com/advisories/GHSA-55h5-xmcq-c37v
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-55h5-xmcq-c37v
- https://nvd.nist.gov/vuln/detail/CVE-2026-59937
- https://github.com/py-pdf/pypdf/pull/3887
- https://github.com/py-pdf/pypdf/commit/b5fc5aa714f4b696fb9b1deaa35a9e4a4eb50dae
- https://github.com/py-pdf/pypdf/releases/tag/6.14.0
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