CVE-2026-42208: BerriAI LiteLLM SQL Injection Vulnerability

Vulnerability summary

CVE-2026-42208 is a critical (CVSS 9.8) SQL Injection vulnerability in BerriAI LiteLLM. It is known to be exploited: CISA lists it, first on 08-05-2026. EPSS estimates a 5.77% chance of exploitation in the next 30 days, higher than 93% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-05-2026
   PublishedVulnerability first disclosed.
2. 08-05-2026
   Added to CISA KEVBerriAI LiteLLM SQL Injection Vulnerability
3. 11-05-2026
   CISA remediation dueApply mitigations per vendor instructions.
4. 15-07-2026
   Last modifiedVulnerability information updated.

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.

• CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.