5.3
Medium
CVE-2026-59823 LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format
Description
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.9, an authenticated LiteLLM Proxy caller with a valid virtual key can place api_base inside the user_config request body to bypass is_request_body_safe, which blocks top-level api_base and base_url but previously did not inspect or reject user_config. Because user_config constructs the outbound router, the nested destination redirects a server-side request to an internal or external host selected by the caller and can expose endpoints the caller cannot otherwise access. This issue is fixed in version 1.83.9.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| litellm 1.83 | earliest → < 1.83.9 | 1.83.9 |
Other CVEs of litellm
The 40 CVEs of litellm →
CVE-2026-114612
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format
9.9
Critical
CVE-2026-108575
A vulnerability has been found in BerriAI LiteLLM up to 1.94.0
5.3
Medium
CVE-2026-108574
A flaw has been found in BerriAI LiteLLM up to 1.95.0
5.3
Medium
CVE-2026-93355
LiteLLM contains a weak authentication vulnerability that allows an attacker holding a valid JWT from the configured…
7.6
High