CVE-2026-42271: Unauthenticated RCE in LiteLLM AI Gateway
LiteLLM, a widely deployed open-source AI gateway, is affected by a critical exploit chain that allows unauthenticated attackers to execute arbitrary commands on vulnerable hosts. CISA added CVE-2026-42271 to its Known Exploited Vulnerabilities (KEV) catalog on June 9, 2026, confirming active exploitation in the wild. The Qilin ransomware group has been linked to exploitation activity. What makes this especially dangerous is the chain: CVE-2026-42271 on its own required a valid API key.