CVE-2026-27024

ADVISORY - github

Summary

Impact

An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires accessing the children of a TreeObject, for example as part of outlines.

Patches

This has been fixed in pypdf==6.7.1.

Workarounds

If you cannot upgrade yet, consider applying the changes from PR #3645.

Common Weakness Enumeration (CWE)

ADVISORY - github

CWE-835⁠

Loop with Unreachable Exit Condition ('Infinite Loop')

Impacted images

Advisories

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