Anyscale Ray v2.52.0 Token Authentication Disabled by Default Insecure Configuration Severity High Date November 26, 2025 Affected Version Anyscale Ray v2.52.0 CVE ID VULN-2025-34351 CWE ID CWE-1188 Insecure Default Initialization of Resource CVSS V4 Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N References Ray Authentication Documentation Researcher Advisory Credit Jonathan Leitschuh Description Anyscale Ray 2.52.0 contains an insecure default configuration in which token-based authentication for Ray management interfaces (including the dashboard and Jobs API) is disabled unless explicitly enabled by setting RAY_AUTH_MODE=token. In the default unauthenticated state, a remote attacker with network access to these interfaces can submit jobs and execute arbitrary code on the Ray cluster. Note: The vendor plans to enable token authentication by default in a future release. They recommend enabling token authentication to protect your cluster from unauthorized access.