Keystone Middleware is a technology platform tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed February 3, 2026; most recent activity February 3, 2026.
A vulnerability in the Keystone Middleware affects Ubuntu 25.10 and 24.04 LTS. Discovered by Grzegorz Grasza, the issue arises from improper sanitization of authentication headers, potentially allowing attackers to…