Linuxsecurity Access Escalation Vulnerability in Ubuntu Keystone Middleware
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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 escalate privileges or impersonate users. The flaw is linked to the processing of OAuth 2.0 tokens.
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