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They Patched It on April 19. It Was Exploited by April 21. CVE-2026-42208 in LiteLLM Is the Cleanest Lesson in Modern AppSec This Year. Security
2026.05.04 · 126 views

They Patched It on April 19. It Was Exploited by April 21. CVE-2026-42208 in LiteLLM Is the Cleanest Lesson in Modern AppSec This Year.

A pre-authentication SQL injection in the LiteLLM proxy's API-key check leaked virtual API keys, stored provider credentials, and the proxy's environment variables. CVSS 9.3. First in-the-wild exploitation: ~36 hours after public disclosure. Every line of the post-mortem hits the four pillars — input validation, authn/authz, third-party packages, and CIA — at the same time.

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