A notice published on October 1, 2026 reports incorrect validation of overlapping DNS zones in OpenStack Designate. An authenticated user could redirect traffic or cause denial of service.
Notice USN-8860-1 reports that OpenStack Designate did not correctly validate overlapping zones in certain circumstances. According to the report, an authenticated user could exploit the flaw to redirect DNS traffic to systems controlled by attackers or cause denial of service. The notice was published on October 1, 2026.
To check the scope and technical details, consult the original USN-8860-1 notice through Ubuntu’s official security channels and compare its information with official OpenStack project records and guidance. The supplied text does not state affected versions or specific fixes; verify those details in the notice before taking action.