# CVE-2026-3308: mupdf: An integer overflow vulnerability in 'pdf-image.c' in Artifex's MuPDF version 1.27.0 allows an attacker to maliciousl...

CVE-2026-3308 is fixed in mupdf on 1 platform, first by DEBIAN-CVE-2026-3308, released March 31, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-3308
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 31, 2026

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mupdf Debian 12.15 (bookworm) | 1.21.1+ds2-1+deb12u1 | [DEBIAN-CVE-2026-3308](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3308.md) | Mar 31, 2026 |
| Linux | mupdf Debian 13.5 (trixie) | 1.25.1+ds1-6+deb13u1 | [DEBIAN-CVE-2026-3308](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3308.md) | Mar 31, 2026 |
| Linux | mupdf Debian 14 | 1.27.0+ds1-4 | [DEBIAN-CVE-2026-3308](https://patchblox.com/security/data/fix/linux/debian-cve-2026-3308.md) | Mar 31, 2026 |

---

Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.