CVE-2026-3308 Affecting mupdf package, versions <1.21.1+ds2-1+deb12u1
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-ECHOLATEST-MUPDF-21279854
- published20 Oct 2026
- disclosed31 Mar 2026
Introduced: 31 Mar 2026
CVE-2026-3308 (opens in a new tab)How to fix?
Upgrade Echo:latest mupdf to version 1.21.1+ds2-1+deb12u1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mupdf package and not the mupdf package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciously craft a PDF that can trigger an integer overflow within the 'pdf_load_image_imp' function. This allows a heap out-of-bounds write that could be exploited for arbitrary code execution.
References
- https://advisory.echohq.com/cve/CVE-2026-3308
- https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
- https://github.com/ArtifexSoftware/mupdf
- https://github.com/ArtifexSoftware/mupdf/commit/a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
- https://www.kb.cert.org/vuls/id/951662
- https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html