CVE-2026-33699

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

pypdf is a free and open-source pure-python PDF library. Versions prior to 6.9.2 have a vulnerability in which an attacker can craft a PDF which leads to an infinite loop. This requires reading a file in non-strict mode. This has been fixed in pypdf 6.9.2. If users cannot upgrade yet, consider applying the changes from the patch manually.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

No affected versions have been published.

Timeline

Published
Mar 27, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-33699: High severity, CVSS 7.5 | Vulnix