pypdf: Possible long runtimes for large xref table header limits

Date Oct 23, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product PyPI ยท pypdf
CVE CVE-2026-115580
High-risk advisory CVE-2026-115580

Summary

pypdf: Possible long runtimes for large xref table header limits

Why it matters

GitHub has published a reviewed security advisory for pypdf. Prioritize it with other application dependency updates.

Operator check

Check whether pypdf is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.1.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.