CVE-2026-42208
LiteLLM: SQL injection in Proxy API key verification
BerriAI LiteLLM SQL Injection Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
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.
CISA notes
https://github.com/BerriAI/litellm/security/advisories/GHSA-r75f-5x8p-qvmc ; https://nvd.nist.gov/vuln/detail/CVE-2026-42208
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.
Severity
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation Context
as of October 17, 2026- CISA added CVE-2026-42208 to the KEV catalog on the day its CVE record was published. The median for entries added in 2026 so far is 14 days.
- It is one of 3 BerriAI entries in the CISA KEV catalog, and one of 3 added in 2026.
- Its current EPSS score (5.8%) is higher than that of 20% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| BerriAI | BerriAI litellm | >= 1.81.16, < 1.83.7 |
References
2 LinksRecord Details
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