CVE-2026-3308 · cross-distro fix matrix

CVE-2026-3308: 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 executio

Affects 3 Linux releases across 3 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-3308 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

mupdf→ fixed in1.17.0+ds1-2+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mupdf
```

Debian bookworm

Source: Debian Security Tracker

mupdf→ fixed in1.21.1+ds2-1+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mupdf
```

Debian trixie

Source: Debian Security Tracker

mupdf→ fixed in1.25.1+ds1-6+deb13u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y mupdf
```

Are YOU affected by CVE-2026-3308?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

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