CVE-2026-4367

MEDIUM

Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing

Title source: cna

Description

A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.

References (6)

Core 6

Core References

Vdb Entry, X_Refsource_Redhat vdb-entry x_refsource_redhat

https://access.redhat.com/security/cve/CVE-2026-4367

Issue Tracking, X_Refsource_Redhat issue-tracking x_refsource_redhat

RHBZ#2448984

https://bugzilla.redhat.com/show_bug.cgi?id=2448984

https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd

https://seclists.org/oss-sec/2026/q2/192

Mailing List

http://www.openwall.com/lists/oss-security/2026/04/21/3

Vendor Advisory vendor-advisory x_refsource_redhat

RHSA-2026:30354

https://access.redhat.com/errata/RHSA-2026:30354

Scores

CVSS v3 5.5

EPSS 0.0013

EPSS Percentile 2.9%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (7)

Red Hat/Red Hat Enterprise Linux 10

Red Hat/Red Hat Enterprise Linux 6

Red Hat/Red Hat Enterprise Linux 7

Red Hat/Red Hat Enterprise Linux 8

Red Hat/Red Hat Enterprise Linux 9

Red Hat/Red Hat Hardened Images

Red Hat/Red Hat Hardened Images 3.5.17-7.2.hum1

Published Jun 16, 2026

Tracked Since Jun 17, 2026