pypdf: Possible infinite loop when processing threads/articles in writer
### Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with threads/articles into a writer. ### Patches This has been fixed in [pypdf==6.13.1](https://github.com/py-pdf/pypdf/releases/tag/6.13.1). ### Workarounds If users cannot upgrade yet, consider applying the changes from PR [#3839](https://github.com/py-pdf/pypdf/pull/3839).
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beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-54651US | medium5.5 | — | ||
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.1, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires mer… | ||||
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Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/advisories/GHSA-g9xf-7f8q-9mcjADVISORY
- https://github.com/py-pdf/pypdfPACKAGE
- https://github.com/py-pdf/pypdf/pull/3839WEB
- https://github.com/py-pdf/pypdf/releases/tag/6.13.1WEB
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-g9xf-7f8q-9mcjWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-54651ADVISORY
- https://pypi.org/project/pypdfPACKAGE
scry
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