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High · 7.8 CVE-2026-3308 EUVD-2026-17412GHSA-6jrq-hjxp-2x5r

CVE-2026-3308

Published Mar 31, 2026 · Updated Apr 21, 2026 · Assigned by certcc

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.

Affected products

VendorProductAffectedFixed
Artifex Software Inc. *PyMuPDF* MuPDF ≤ 1.27.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 mupdf 1.27.0+ds1-4 —
Debian 13 mupdf 1.25.1+ds1-6+deb13u1 —
Debian 12 mupdf 1.21.1+ds2-1+deb12u1 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 mupdf No fix yet —
Ubuntu 26.04 LTS mupdf No fix yet —
Ubuntu 25.10 mupdf No fix yet —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS mupdf No fix yet —
Ubuntu Pro 22.04 LTS mupdf No fix yet —
Ubuntu Pro 20.04 LTS mupdf No fix yet —
Ubuntu Pro 18.04 LTS mupdf No fix yet —
Ubuntu Pro 16.04 LTS mupdf No fix yet —

References