Hacker breaches LiteLLM via unrevoked key and publishes malicious software update
An attacker exploited a master key that had been accidentally published in a public LiteLLM repository and never revoked, gaining access to the project's release pipeline. Using an administrator access key obtained through that breach, the intruder pushed a tampered version 1.107.0 to PyPI and container registries on October 21, 2026. The malicious release was designed to launch automatically when Python started, carrying a credential-stealing tool and a backdoor for Unix systems. Security researcher Lidor Machluf of Upwind detected the attack, and distribution platforms quarantined or removed the infected files within a few hours.
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