CVE-2026-1489: Red Hat Enterprise Linux 10

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

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
• Siemens Ruggedcom RST2428P: before V4.0 (fixed in V4.0)

Published 2026-01-27. Last modified 2026-06-17.