Integer Overflow or Wraparound Affecting pymupdf package, versions [0,]
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-PYMUPDF-15923526
- published7 Apr 2026
- disclosed31 Mar 2026
- creditYarden Porat
Introduced: 31 Mar 2026
CVE-2026-3308 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
PyMuPDF is an A high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.
Affected versions of this package are vulnerable to Integer Overflow or Wraparound in the pdf_load_image_imp() function. An attacker can achieve arbitrary code execution by supplying a specially crafted PDF file that triggers an integer overflow, leading to a heap out-of-bounds write.