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PYSEC-2026-3009
pypdf: Possible infinite loop when retrieving fonts for layout-mode text extraction
Quick fix
PYSEC-2026-3009 — pypdf: upgrade to the fixed version with the command below.
pip install --upgrade 'pypdf>=6.13.0'Details
### Impact
An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires extracting the text in layout mode.
### Patches
This has been fixed in [pypdf==6.13.0](https://github.com/py-pdf/pypdf/releases/tag/6.13.0).
### Workarounds
If you cannot upgrade yet, consider applying the changes from PR [#3830](https://github.com/py-pdf/pypdf/pull/3830).
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-52x6-gq3r-vpf4[WEB]
- https://github.com/py-pdf/pypdf/pull/3830[WEB]
- https://github.com/py-pdf/pypdf[PACKAGE]
- https://github.com/py-pdf/pypdf/releases/tag/6.13.0[WEB]
- https://pypi.org/project/pypdf[PACKAGE]
- https://github.com/advisories/GHSA-52x6-gq3r-vpf4[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2026-54530[ADVISORY]