CVE-2026-54531

MEDIUM EPSS 2.4%
Published Jun 22, 20261w ago · Modified Jun 23, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Jun 22, 2026 1w ago
Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-835

References 3

  • github.com https://github.com/py-pdf/pypdf/pull/3830
  • github.com https://github.com/py-pdf/pypdf/releases/tag/6.13.0
  • github.com https://github.com/py-pdf/pypdf/security/advisories/GHSA-m2v9-299j-rv96

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.