MEDIUM 6.5 PyPI
pypdf: Manipulated FlateDecode image dimensions can exhaust RAM
GHSA-x284-j5p8-9c5p · CVE-2026-41314
Published · Modified
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing an image using /FlateDecode with large size values.
Patches
This has been fixed in pypdf==6.10.2.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3734.
References
- WEB https://github.com/py-pdf/pypdf/security/advisories/GHSA-x284-j5p8-9c5p
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-41314
- WEB https://github.com/py-pdf/pypdf/pull/3734
- WEB https://github.com/py-pdf/pypdf/commit/ac734dab4eef92bcce50d503949b4d9887d89f11
- PACKAGE https://github.com/py-pdf/pypdf
- WEB https://github.com/py-pdf/pypdf/releases/tag/6.10.2
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