All vulnerabilities
CVE-2026-112036

Artifex MuPDF Signature Locking pdf-xref.c free_char_list double free

Artifex MuPDF
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 19 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.34%Chance of exploitation activity in the next 30 days, higher than 25% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published19 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Description

A vulnerability was detected in Artifex MuPDF up to 1.28.5. This impacts the function free_char_list of the file source/pdf/pdf-xref.c of the component Signature Locking. Performing a manipulation results in double free. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named 3984925b660afb8a781ddf504021e91be1bc671e. To fix this issue, it is recommended to deploy a patch.

Text from CVE List

Affected versions 6

  • MuPDFaffected: 1.28.0CVE List
  • MuPDFaffected: 1.28.1CVE List
  • MuPDFaffected: 1.28.2CVE List
  • MuPDFaffected: 1.28.3CVE List
  • MuPDFaffected: 1.28.4CVE List
  • MuPDFaffected: 1.28.5CVE List

References 7