UNKNOWN PyPI
pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)
PYSEC-2026-3613 · CVE-2026-59935 · GHSA-g867-7843-wf8q
Published · Modified
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Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. It only affects the ASCII85 and ASCIIHex filters.
Patches
This has been fixed in pypdf==6.14.2.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3892.
References
- WEB https://github.com/py-pdf/pypdf/security/advisories/GHSA-g867-7843-wf8q
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-59935
- WEB https://github.com/py-pdf/pypdf/pull/3892
- WEB https://github.com/py-pdf/pypdf/commit/5a33a46416aa1ae6c025ff90a3cca57631fdafd2
- PACKAGE https://github.com/py-pdf/pypdf
- WEB https://github.com/py-pdf/pypdf/releases/tag/6.14.2
- PACKAGE https://pypi.org/project/pypdf
- ADVISORY https://github.com/advisories/GHSA-g867-7843-wf8q
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