UNKNOWN PyPI
pypdf: Possible infinite loop for TreeObject.insert_child
PYSEC-2026-3913 · CVE-2026-84309 · GHSA-jp53-mhqp-8xcg
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 a (usually writing) code path where TreeObject.insert_child is involved.
Patches
This has been fixed in pypdf==6.16.0.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3964.
References
- WEB https://github.com/py-pdf/pypdf/security/advisories/GHSA-jp53-mhqp-8xcg
- WEB https://github.com/py-pdf/pypdf/pull/3964
- WEB https://github.com/py-pdf/pypdf/commit/c9ba557d565d57c53a0b3a0be06c0a4c29b0559b
- PACKAGE https://github.com/py-pdf/pypdf
- WEB https://github.com/py-pdf/pypdf/releases/tag/6.16.0
- PACKAGE https://pypi.org/project/pypdf
- ADVISORY https://github.com/advisories/GHSA-jp53-mhqp-8xcg
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-84309
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