Missing Release of Memory after Effective Lifetime Affecting pymupdf package, versions [,1.18.0)
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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- published16 Sept 2025
- disclosed22 Aug 2023
- creditUnknown
Introduced: 22 Aug 2023
CVE-2020-26683 (opens in a new tab)How to fix?
Upgrade PyMuPDF to version 1.18.0 or higher.
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 Missing Release of Memory after Effective Lifetime through the /pdf/pdf-font-add.c component. An attacker can obtain sensitive information by exploiting a memory leak issue.