CVE-2026-4367
Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-125 |
| Vendor | red hat |
| Product | red hat enterprise linux 10 |
| Published | Jun 16, 2026 |
| Last Updated | Jun 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-4367 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2448984 gitlab.freedesktop.org: https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd seclists.org: https://seclists.org/oss-sec/2026/q2/192 openwall.com: http://www.openwall.com/lists/oss-security/2026/04/21/3
Credits
Red Hat would like to thank Naoki Wakamatsu (JPCERT/CC Vulnerability Coordination Group) for reporting this issue.