CVE-2026-112036

MEDIUM 4.3

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

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-415 CWE-119
Vendor	artifex
Product	mupdf
Published	Oct 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Artifex / MuPDF

1.28.0 1.28.1 1.28.2 1.28.3 1.28.4 1.28.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/421684 vuldb.com: https://vuldb.com/vuln/421684/cti vuldb.com: https://vuldb.com/cve/CVE-2026-112036 vuldb.com: https://vuldb.com/submit/1008495 bugs.ghostscript.com: https://bugs.ghostscript.com/show_bug.cgi?id=709768 bugs.ghostscript.com: https://bugs.ghostscript.com/attachment.cgi?id=28609 ghostscript.com: http://www.ghostscript.com/cgi-bin/findgit.cgi?3984925b660afb8a781ddf504021e91be1bc671e artifex.com: https://artifex.com/

Credits

🔍 suyuanwang (VulDB User)