Wiz Research (Amitai Cohen & Yaara Shriki, 9 September 2026) scanned ~3,074 internet-facing LiteLLM AI gateways: 294 (9.6%) accepted the docs/Docker default master key sk-1234 or required no authentication (191 of those had no key at all). Default/missing master key grants admin and exposes every configured LLM provider API key (LLMjacking), and can chain to post-auth custom-code-guardrail RCE CVE-2026-59821 (fixed v1.82.0) for root-in-container when still on vulnerable builds.

Same research covers MCP auth bypass CVE-2026-59822 (already on Cyberstack; CISA KEV; Wiz honeypot exploitation). LiteLLM still ships sk-1234 as the example/default in common install paths. Mitigate: set a unique strong master key immediately; upgrade past 1.82.0/1.84.0; review custom guardrails and pass-through endpoints. (source: Wiz)

Correction (02 Nov 2026): removed The Hacker News as a source. (source: Wiz)