CVE-2026-4367: Red Hat Enterprise Linux 10

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• 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: before 3.5.17-7.2.hum1 (fixed in 3.5.17-7.2.hum1); before 3.5.19-4.hum1 (fixed in 3.5.19-4.hum1)

Published 2026-06-16. Last modified 2026-07-28.