CVE-2026-78376: Red Hat Enterprise Linux 6

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory handling and result in memory corruption.

Affected products

• Red Hat Red Hat Enterprise Linux 6
• Red Hat Red Hat Enterprise Linux 7
• Red Hat Red Hat Enterprise Linux 8: before 0:2.54.0-1.el8_10 (fixed in 0:2.54.0-1.el8_10)
• Red Hat Red Hat Enterprise Linux 9: before 0:2.54.0-1.el9_8 (fixed in 0:2.54.0-1.el9_8)
• Webkit Webkit: from 2.21.1
• WebKitGTK WebKitGTK: from 2.21.1

Published 2026-08-24. Last modified 2026-09-30.