Out-of-bounds Read Affecting mupdf package, versions [0,)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-UNMANAGED-MUPDF-16323276
- published30 Apr 2026
- disclosed28 Apr 2026
- creditbiniam
Introduced: 28 Apr 2026
CVE-2026-7233 (opens in a new tab)How to fix?
There is no fixed version for mupdf.
Overview
Affected versions of this package are vulnerable to Out-of-bounds Read in the fz_subset_cff_for_gids function. An attacker can access sensitive information from memory by exploiting this flaw locally.
Workaround
This vulnerability can be mitigated by avoiding the opening of untrusted or malicious PDF documents with applications that utilize the affected library, or by removing the package if it is not essential.