LiteLLM Proxy < 1.84.0 - Host Header Authentication Bypass

LiteLLM Proxy before 1.84.0 derives its public-route authorization check from a URL reconstructed with the unvalidated Host header. A Host value containing a fragment can make a protected request appear to target the public root route, bypassing the API-key check. Version 1.84.0 derives the route...

CVE-2026-42208-Lab

CVE-2026-42208 — LiteLLM Pre-Auth SQL Injection Timing PoC Local Docker lab and least-harm PoC for CVE-2026-42208, a pre-authentication SQL injection vulnerability in LiteLLM Proxy's API key verification path. This repository demonstrates the difference between a vulnerable LiteLLM instance and a...

CVE-2026-42208_lab

LiteLLM Proxy SQL Injection GHSA-r75f-5x8p-qvmc A reproduction environment for the SQL injection vulnerability in LiteLLM Proxy's API key authentication flow. Vulnerability Summary Item| Detail ---|--- Advisory| GHSA-r75f-5x8p-qvmc Type| SQL Injection CWE-89 Severity| Critical Affected| litellm...

litellm-sqli-scanner

LiteLLM SQL Injection Scanner CVE-2026-42208 — SQL injection in LiteLLM Proxy Detects and validates CVE-2026-42208: SQL injection vulnerability in LiteLLM Proxy's database layer. For authorized security testing only. Features CVE-2026-42208 SQL injection detection LiteLLM Proxy version...

LiteLLM Proxy has server-side request forgery via the `user_config` request parameter

SummaryA server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect theproxy's outbound request to a host of their choosing by smuggling an apibase inside theuserconfig request body, bypassing the existing parameter guard. DetailsLiteLLM Proxy validates request bodies with...

PYSEC-2026-4070 LiteLLM Proxy has server-side request forgery via the `user_config` request parameter

Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy's outbound request to a host of their choosing by smuggling an apibase inside the userconfig request body, bypassing the existing parameter guard. Details LiteLLM Proxy validates request bodies...

LiteLLM: M2M JWT Handler Has Improper Authorization

A vulnerability was identified in BerriAI litellm up to 1.82.2. This affects an unknown function of the file litellm/proxy/auth/userapikeyauth.py of the component M2M JWT Handler. Such manipulation leads to improper authorization. The attack can be launched remotely. A high complexity level is...

PT-2026-105822

Impact Any authenticated LiteLLM proxy user could redirect an outbound provider call to a destination they control and cause the proxy to send its own configured provider credentials to that destination. The proxy's request-body validation was a denylist that did not cover every sensitive paramet...

PT-2026-105826

Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy's outbound request to a host of their choosing by smuggling an api base inside the user config request body, bypassing the existing parameter guard. Details LiteLLM Proxy validates request bodie...

PT-2026-105830

A vulnerability was identified in BerriAI litellm up to 1.82.2. This affects an unknown function of the file litellm/proxy/auth/user api key auth.py of the component M2M JWT Handler. Such manipulation leads to improper authorization. The attack can be launched remotely. A high complexity level is...

EUVD-2026-80986

LiteLLM Proxy has server-side request forgery via the userconfig request parameter...

LiteLLM Proxy has server-side request forgery via the `user_config` request parameter

Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy's outbound request to a host of their choosing by smuggling an apibase inside the userconfig request body, bypassing the existing parameter guard. Details LiteLLM Proxy validates request bodies...

GHSA-HX8V-G79F-8W5F LiteLLM Proxy has server-side request forgery via the `user_config` request parameter

Summary A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy's outbound request to a host of their choosing by smuggling an apibase inside the userconfig request body, bypassing the existing parameter guard. Details LiteLLM Proxy validates request bodies...

CVE-2026-59823 LiteLLM: Server-side request forgery via the `user_config` request parameter in LiteLLM Proxy

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 apibase inside the userconfig request body to bypass isrequestbodysafe, which blocks top-level apibase and baseurl but...

CVE-2026-59823

LiteLLM is a proxy server (AI Gateway) for calling LLM APIs. Prior to version 1.83.9 , an authenticated caller holding a valid virtual key could place api_base inside the user_config request body, bypassing the is_request_body_safe check that blocks top-level api_base and base_url but did not ins...

PT-2026-93896

Name of the Vulnerable Software and Affected Versions LiteLLM versions prior to 1.83.9 Description LiteLLM Proxy is susceptible to Server-Side Request Forgery SSRF, a condition where an attacker can induce the server to make requests to an unintended location. An authenticated caller with a valid...

📄 LiteLLM 1.83.6 Blind SQL Injection

A proof of concept exploit for a pre-authentication blind SQL injection vulnerability in LiteLLM version 1.83.6. The vulnerability affects LiteLLM proxy versions 1.81.16 through 1.83.6 and occurs because the virtual-key lookup interpolates an unauthenticated bearer token directly into a PostgreSQ...

LiteLLM Proxy - Model Exposure Detection

LiteLLM proxy was detected with anonymous access to the model listing API. LiteLLM proxies that ship without generalsettings.masterkey or with the key disabled expose the configured upstream model catalog via /v1/models and /model/info — revealing which OpenAI / Anthropic / Azure / Bedrock /...

VulnCheck KEV: CVE-2026-59821

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. Prior to 1.82.0-stable, LiteLLM's Custom Code Guardrails production create and update paths did not apply the same sandboxing and validation used by the test endpoint, allowing a privileged user with access to creat...

LiteLLM: Custom Code Guardrails production endpoints bypass code safety checks

ImpactLiteLLM's Custom Code Guardrails production create/update paths did not apply the same sandboxing and validation used by the test endpoint.A privileged user with access to create or update guardrails could submit custom Python code that executed in the LiteLLM proxy environment. In...