CVE-2026-3308

HIGH

Mupdf < 1.27.0 - Out-of-Bounds Access

Title source: rule

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.

References (5)

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

[Third Party Advisory, US Government Resource] https://www.kb.cert.org/vuls/id/951662

[Mailing List] https://lists.debian.org/debian-lts-announce/2026/04/msg00020.html

Scores

CVSS v3 7.8

EPSS 0.0002

EPSS Percentile 4.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-190

Status published

Products (1)

Artifex Software Inc. *PyMuPDF*/MuPDF < 1.27.0

Published Mar 31, 2026

Tracked Since Mar 31, 2026