MEDIUMCVSS 6.0EPSS 0.3%

CVE-2026-113789

CVE-2026-113789 updated by NVD

Published: 2026-10-22
Modified: 2026-11-04
EPSS percentile: 23%
Sources: github-advisory, nvd

Summary

pypdf is a free and open-source pure-python PDF library. Prior to 6.21.0, an attacker can craft a PDF that causes large memory usage or long runtimes when an application retrieves the document's form fields. This issue is fixed in version 6.21.0.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
PyPI	pypdf	—	6.21.0

Remediation: Upgrade to 6.21.0 or later.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-113789

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.