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CVE-2026-42208

Critical · CVSS 9.8EPSS 93.1%CISA KEVCWE-89 · SQL Injection

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

NVD MITRE CVE.org CISA KEV

Published

Community ground truth

Community verdict

3 verdicts
Not a real issue

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Community real-world severity: Critical (Critical 3) — CVSS base score 9.8

In line with its CVSS base score.

Field notes & remediation

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  • 0
    Field note · Priya NairCurated

    Confirmed exploited in the wild — listed in the CISA KEV catalog (added 2026-05-08). Treat as real and prioritize patching over triage.