CVE-2026-113792

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

CVE-2026-113792 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-113792, released October 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
3.3
low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0034
27th percentile

pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, calling PdfWriter.find_outline_item on a crafted PDF with a cyclic outline hierarchy can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.

Where it's fixed

ProductFixed inFixReleased
Linux
pypdf · Debian 14 6.21.0-1 DEBIAN-CVE-2026-113792 Oct 24, 2026
python-pypdf · opensuse-leap 16.0 6.19.0-bp160.2.1 OPENSUSE-SU-2026:22188-1 Nov 7, 2026

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