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CVE-2026-114612

CVE-2026-114612 · LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 9.9 · Critical · EPSS 0.3% · Public exploit

Published
Updated

Affected products and versions

  • litellm

    Versions
    • >= 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

    No fix published

Original sources

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