Bug 2433492 (CVE-2026-24688) - CVE-2026-24688 pypdf: pypdf Infinite Loop when processing outlines/bookmarks
Summary: CVE-2026-24688 pypdf: pypdf Infinite Loop when processing outlines/bookmarks
Keywords:
Status: NEW
Alias: CVE-2026-24688
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-27 20:02 UTC by OSIDB Bzimport
Modified: 2026-01-28 21:21 UTC (History)
19 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-01-27 20:02:44 UTC 
pypdf is a free and open-source pure-python PDF library. An attacker who uses an infinite loop vulnerability that is present in versions prior to 6.6.2 can craft a PDF which leads to an infinite loop. This requires accessing the outlines/bookmarks. This has been fixed in pypdf 6.6.2. If projects cannot upgrade yet, consider applying the changes from PR #3610 manually.
Note You need to log in before you can comment on or make changes to this bug.