CVE-2026-114612
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.
Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| BerriAI | litellm | >= 1.87.0, < 1.100.4 (affected), >= 1.101.0, < 1.101.3 (affected), >= 1.102.0, < 1.102.2 (affected), >= 1.103.0, < 1.103.1 (affected), >= 1.104.0-rc.1, < 1.104.0-rc.2 (affected) |
References & Technical Advisories
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-10-21T20:34:25 |
| Published | 2026-10-22T18:01:52 |
| Last Updated | 2026-10-30T18:17:34 |
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