CVE-2026-3308CVE-2026-3308
Updated under an hour ago ()
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It affects Artifex Software Inc. *PyMuPDF* MuPDF. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- certcc
- NVD analysis
- Awaiting Analysis
- Record last updated
- Apr 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Artifex Software Inc. *PyMuPDF* MuPDF artifex_software_inc_pymupdf:mupdf (from the name) | through 1.27.0 | CNA record |
References
- https://github.com/ArtifexSoftware/mupdf/commit/a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
- https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=a26f0142e7d390d4a82c6e5ae0e312e07cc4ec85
- https://github.com/ArtifexSoftware/mupdf
- https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html
- https://www.kb.cert.org/vuls/id/951662
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.