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Vulnerability · Published Oct 22, 2026 · Assigned by GitHub_M

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

Critical 9.9

In plain English

A critical-severity privilege mismanagement in litellm from BerriAI. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.9Critical
Exploit odds (30 days)0.3%top 75.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIlitellm1.100.4GHSA-7hp6-4w63-5g45
PyPIlitellm1.101.3GHSA-7hp6-4w63-5g45
PyPIlitellm1.102.2GHSA-7hp6-4w63-5g45
PyPIlitellm1.103.1GHSA-7hp6-4w63-5g45
PyPIlitellm1.104.0rc2GHSA-7hp6-4w63-5g45

Affected products (as reported)

VendorProductVersions
BerriAI litellm >= 1.87.0, < 1.100.4>= 1.101.0, < 1.101.3>= 1.102.0, < 1.102.2>= 1.103.0, < 1.103.1>= 1.104.0-rc.1, < 1.104.0-rc.2

Weakness: CWE-269, CWE-345, CWE-441 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References