Infinite loop Affecting pypdf package, versions [,6.6.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-PYPDF-15117508
- published27 Jan 2026
- disclosed26 Jan 2026
- creditJoakim Bülow
Introduced: 26 Jan 2026
CVE-2026-24688 (opens in a new tab)How to fix?
Upgrade pypdf to version 6.6.2 or higher.
Overview
pypdf is an A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Affected versions of this package are vulnerable to Infinite loop via the _get_outline() function. An attacker can cause the application to enter an infinite loop by crafting PDF file with cyclic outline references.