Vulnerability Description
pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unexpected end of file and enter an infinite loop. This issue is fixed in version 6.20.0.
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/pypdf/commit/37e1cd681744bac38b159f7e1c614eee8d639c58
- https://github.com/py-pdf/pypdf/issues/4169
- https://github.com/py-pdf/pypdf/pull/4170
- https://github.com/py-pdf/pypdf/releases/tag/6.20.0
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-39mj-jf6j-2qj3
FAQ
What is CVE-2026-113794?
CVE-2026-113794 is a documented vulnerability. pypdf is a free and open-source pure-python PDF library. Prior to 6.20.0, an attacker can craft an incomplete PDF that ends inside a standard cross-reference table, causing pypdf to mishandle the unex...
How severe is CVE-2026-113794?
CVSS scoring is not yet available for CVE-2026-113794. Check NVD for updates.
Is there a patch for CVE-2026-113794?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.