CVE-2026-33699

pypdf: pypdf is a free and open-source pure-python PDF library

CVE-2026-33699 is fixed in pypdf on 1 platform by DEBIAN-CVE-2026-33699 (version 6.9.2-1), released March 27, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.5
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0047
41st percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
pypdf · Debian 14 6.9.2-1 DEBIAN-CVE-2026-33699 Mar 27, 2026

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