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Fencer Vulns
medium 5.5

CVE-2023-31794 json

MuPDF v1.21.1 was discovered to contain an infinite recursion in the component pdf_mark_list_push.

published 2023-10-31 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36085

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

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.

Patch / fix

  • mupdf Debian 14, Debian 13 1.22.1+ds1-1

debian advisories DEBIAN-CVE-2023-31794

  • mupdf openSUSE Tumbleweed 1.23.4-2.1
  • mupdf Package Hub 15 SP5, openSUSE Leap 15.5 1.21.1-bp155.3.3.1

opensuse advisories openSUSE-SU-2024:13404-1openSUSE-SU-2023:0363-1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.