LiteLLMPublished 22 Oct 2026NVD status: Received

CVE-2026-114612

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format.

ComponentLiteLLM
Severitycritical (CVSS 9.9)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published (NVD)2026-10-22
Affected versions
>= 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
from the CVE Program record written by the CNA that assigned the CVE
Fixed in1.100.4, 1.101.3, 1.102.2, 1.103.1, 1.104.0-rc.2
WeaknessCWE-269CWE-345CWE-441
CISA KEVnot listed

NVD 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.

What to do

  • Upgrade LiteLLM to the fixed release of the branch you run: 1.100.4, 1.101.3, 1.102.2, 1.103.1 or 1.104.0-rc.2, or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

Read more

CVE-2026-114612: LiteLLM vulnerability (CVSS 9.9) · PocketClaw