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Vulnerability record · CVE-2023-31794 · published 31 October 2023

CVE-2023-31794: Artifex mupdf vulnerability

Artifex · Mupdf

MuPDF v1.21.1 was discovered to contain an infinite recursion in the component pdf_mark_list_push. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

5.5 CVSS 3.1 Medium EPSS 0.23% · top 86.9% CWE-674 · CWE-674
5.5CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

MuPDF v1.21.1 was discovered to contain an infinite recursion in the component pdf_mark_list_push. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted PDF file.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugs.ghostscript.com/show_bug.cgi?id=706506 Permissions Required
https://gist.github.com/spookhorror/c770d118767b1b0d89fdfe2845169d06 Third Party Advisory
https://git.ghostscript.com/?p=mupdf.git%3Bh=c0015401693b58e2deb5d75c39f27bc1216e47c6 Broken Link
https://bugs.ghostscript.com/show_bug.cgi?id=706506 Permissions Required
https://gist.github.com/spookhorror/c770d118767b1b0d89fdfe2845169d06 Third Party Advisory
https://git.ghostscript.com/?p=mupdf.git%3Bh=c0015401693b58e2deb5d75c39f27bc1216e47c6 Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-31794), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.