CVE-2026-42208

BerriAI litellm, Red Hat Lightspeed Core, Red Hat Ansible Automation Platform 2

Published 8 May 2026 · updated 15 Jul 2026 · Analyzed

9.3 Critical · CVSS 4.0, github.com

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 8 May 2026, with a remediation deadline of 11 May 2026 for US federal agencies.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Description

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.81.16 to before version 1.83.7, a database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An unauthenticated attacker could send a specially crafted Authorization header to any LLM API route (for example POST /chat/completions) and reach this query through the proxy's error-handling path. An attacker could read data from the proxy's database and may be able to modify it, leading to unauthorised access to the proxy and the credentials it manages. This issue has been patched in version 1.83.7.

References