MEDIUM 5.3 PyPI
pypdf has long runtimes for wrong size values in cross-reference and object streams
GHSA-jj6c-8h6c-hppx · CVE-2026-41168
Published · Modified
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with wrong large /Size values or object streams with wrong large /N values.
Patches
This has been fixed in pypdf==6.10.1.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3733.
References
- WEB https://github.com/py-pdf/pypdf/security/advisories/GHSA-jj6c-8h6c-hppx
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-41168
- WEB https://github.com/py-pdf/pypdf/pull/3733
- WEB https://github.com/py-pdf/pypdf/commit/62338e9d36419cf193ccec7331784f45df1d70b3
- PACKAGE https://github.com/py-pdf/pypdf
- WEB https://github.com/py-pdf/pypdf/releases/tag/6.10.1
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