CVE-2026-42208
CWE-89
100.6
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
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.
Source: NVD
Signals
- CVSS
- 9.8
- Critical · v3.1
- EPSS
- 5.77%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since May 2026
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-89
- Published
- 8 May 2026
- Last modified 15 Jul 2026
How to read these signals: RPS · EPSS · CISA KEV · Data sources
Get this score from the API
curl -H "Authorization: Bearer dsec_live_xxxxxxxx" \
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Data as of 7 Oct 2026, 05:16 UK time