Bug 2527681 (CVE-2026-84377)

Summary:	CVE-2026-84377 litellm: LiteLLM: Authenticated Server-Side Request Forgery and credential exposure
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dschmidt, ebourniv, hasun, ilpinto, jlanda, jwong, kshier, ltomasbo, nyancey, omaciel, ptisnovs, sbunciak, simaishi, stcannon, teagle, ttakamiy, yguenane, ykashtan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Doc Text:	A flaw was found in LiteLLM, a proxy server for Large Language Model (LLM) APIs. An authenticated remote attacker could exploit incomplete request validation to redirect outbound provider calls to an attacker-controlled destination. This Server-Side Request Forgery (SSRF) vulnerability could lead to the exposure of configured provider credentials and other secrets, and allow server-side requests to internal services reachable by the proxy.	Story Points:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-09-02 17:31:32 UTC

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to versions 1.88.6 and 1.96.2, any authenticated LiteLLM proxy user could redirect an outbound provider call to a destination the user controls and cause the proxy to send its configured provider credentials to that destination. Request validation in litellm/proxy/auth/auth_utils.py, litellm/proxy/common_request_processing.py, litellm/proxy/health_endpoints/_health_endpoints.py, litellm/proxy/image_endpoints/endpoints.py, and litellm/proxy/litellm_pre_call_utils.py used incomplete checks that did not cover every sensitive parameter or inspect equivalent values across nested request fields, path values, and bracket-notation form data. Routing and credential parameters including api_base, base_url, model_list, fallbacks, and litellm_credential_name could therefore be applied without clearing the operator's stored key, exposing upstream provider credentials and other configured secrets and permitting server-side requests to internal services reachable by the proxy. This issue is fixed in versions 1.88.6 and 1.96.2.