Medium severity · published Jun 16, 2026
CVE-2026-4367
Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing
5.5
CVSS
0.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Hardened Images · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-4367
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-4367
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:30354
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:47072
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
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