MSRXCVE-2026-42208
CVE-2026-42208
LiteLLM: SQL injection in Proxy API key verification
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CVSS 4.0 · CNA
chance of exploitation in the next 30 days (EPSS; in the top 1% of all CVEs)
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.
Scores
Affected packages and fixed versions
| Package | Ecosystem | Fixed in |
|---|---|---|
| litellm | PyPI | 1.83.7 |
Affected products
- BerriAI litellm: >= 1.81.16, < 1.83.7
Weakness: CWE-89
Also known as: GHSA-r75f-5x8p-qvmc, PYSEC-2026-391
2 references (advisories, patches, write-ups)
- https://github.com/BerriAI/litellm/security/advisories/GHSA-r75f-5x8p-qvmc · x_refsource_CONFIRM
- https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable · x_refsource_MISC
Sources: CVE.org, OSV.dev, FIRST EPSS. Missing ones did not answer or have no record yet.