VULNERABILITY INTELLIGENCE

CVE-2026-54531

CVSS score5.5 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-06-22
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

pypdf is a free and open-source pure-python PDF library. Prior to 6.13.0, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer. This vulnerability is fixed in 6.13.0.

Weakness classification

  • security-advisories@github.com: CWE-835

Primary references