CVE-2026-4367 | BDVDB-2026-340655 Detail
Red HatRed Hat Hardened Images
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.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact none, availability impact high. Attack vector: local.
Weaknesses#
- CWE-125 Out-of-bounds Read
References#
- https://access.redhat.com/errata/RHSA-2026:30354
- https://access.redhat.com/errata/RHSA-2026:47072
- https://access.redhat.com/security/cve/CVE-2026-4367
- 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
- http://www.openwall.com/lists/oss-security/2026/04/21/3
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.