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CVE-2026-42208

CRITICAL
9.8 CISA KEVNVD

Summary

generated automatically from NVD data

LiteLLM, the AI Gateway proxy server, has a SQL injection flaw (CWE-89) in versions from 1.81.16 up to before 1.83.7: the API key check query embeds the caller-supplied key in the query text rather than passing it as a parameter. An unauthenticated attacker can send a crafted Authorization header to any LLM API route, such as POST /chat/completions, to read and possibly modify the proxy's database, exposing the credentials it manages. It is rated CVSS 9.8 (CRITICAL) and is listed in the CISA KEV catalog; version 1.83.7 patches it.

NVD 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.

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⚠️ Actively exploited — CISA KEV

This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-05-08. It is confirmed exploited in the wild and must be patched as a priority.

Remediation deadline (US federal agencies): 2026-05-11

EPSS · FIRST.org

5.8%probability of exploitation in the next 30 days

Higher than 92% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

CVSS v3.1 Score

9.8
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Information

Published
8 mai 2026
Updated
15 juil. 2026
Status
Analyzed
Source
security-advisories@github.com

Affected products

litellm litellm
Versions : 1.83.7

Weaknesses (CWE)

CWE-89CWE-89

Similar CVEs

Other vulnerabilities of type CWE-89

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