CVE-2026-4367
Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing
- State
- Published
- Severity
- 5.5 Medium
- Published
- Jun 16, 2026
- Updated
- Jul 28, 2026
- Reserved
- Mar 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
Red Hat Hardened ImagesRed Hat |
|
Red Hat Hardened ImagesRed Hat |
|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat |
References
- RHSA-2026:30354vendor-advisory
- RHSA-2026:47072vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-4367vdb-entry
- RHBZ#2448984issue-tracking
- 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
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