UNKNOWN PyPI
pypdf: Possible infinite loop when processing outlines/bookmarks in writer
GHSA-m2v9-299j-rv96 · CVE-2026-54531
Published · Modified
Description
Impact
An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires merging a file with outlines into a writer.
Patches
This has been fixed in pypdf==6.13.0.
Workarounds
If you cannot upgrade yet, consider applying the changes from PR #3830.
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