CVE-2026-54531

MediumCVSS 5.5/10Last modified Jun 25, 2026

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jun 22, 2026
Last modified
Jun 25, 2026
NVD status
Analyzed

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CVE-2026-54531: Medium severity, CVSS 5.5 | Vulnix