CVE-2026-113793Published

pypdf: Possible infinite loop when removing tree items

Exact source revision recorded 28 Oct 2026 17:46:48 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-113793

Published

pypdf is a free and open-source pure-python PDF library. Prior to 6.20.1, removing an object from a crafted cyclic PDF tree, such as an outline item, can enter an infinite loop and block the current process. This issue is fixed in version 6.20.1.

Source published: 21 Oct 2026 15:57:55 UTC
Source modified: 28 Oct 2026 17:01:30 UTC
Observed here: 28 Oct 2026 17:46:48 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 6.0 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N