Vulnerability details

CVE-2026-114612

BerriAI litellm

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

CVSS 3.1

9.9Critical

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.

CVSS scores

Score	Version	Source	Vector
9.9Critical	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
BerriAI	litellm	>= 1.101.0, < 1.101.3	CVEProject cvelistV5 (CNA)
BerriAI	litellm	>= 1.102.0, < 1.102.2	CVEProject cvelistV5 (CNA)
BerriAI	litellm	>= 1.103.0, < 1.103.1	CVEProject cvelistV5 (CNA)
BerriAI	litellm	>= 1.104.0-rc.1, < 1.104.0-rc.2	CVEProject cvelistV5 (CNA)
BerriAI	litellm	>= 1.87.0, < 1.100.4	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/BerriAI/litellm/security/advisories/GHSA-7hp6-4w63-5g45 x_refsource_CONFIRM
https://github.com/BerriAI/litellm/commit/1d5fdc87fed66b49e1df8cf7d708ad93249eb7d0 x_refsource_MISC
https://github.com/BerriAI/litellm/commit/9161d7f9d6073603ba61ee4aa5e2c0ef5b37a81b x_refsource_MISC
https://github.com/BerriAI/litellm/commit/9fa1a641119dd0d4fe43e93622eae5f482ceb63f x_refsource_MISC
https://github.com/BerriAI/litellm/commit/a80eacacee118fbed54e3d98f239d17a63fac818 x_refsource_MISC
https://github.com/BerriAI/litellm/commit/f7cd90f09e9716652b38daec9f0640cdf49d582b x_refsource_MISC
https://github.com/BerriAI/litellm/releases/tag/v1.100.4 x_refsource_MISC
https://github.com/BerriAI/litellm/releases/tag/v1.101.3 x_refsource_MISC
https://github.com/BerriAI/litellm/releases/tag/v1.102.2 x_refsource_MISC
https://github.com/BerriAI/litellm/releases/tag/v1.103.1 x_refsource_MISC
https://github.com/BerriAI/litellm/releases/tag/v1.104.0-rc.2 x_refsource_MISC

Kolun on Telegram @kolunsec Exploited CVEs, key news and a daily digest Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.

Details

Published: 2026-10-22
Last updated: 2026-10-30
State: Published
Assigner (CNA): GitHub_M
Kolun priority: 21 · Low

Exploit prediction (EPSS)

0.31%

Probability of exploitation in 30 days

25%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Total

Weaknesses (CWE)

CWE-269
Improper Privilege Management
CWE-345
Insufficient Verification of Data Authenticity
CWE-441
Unintended Proxy or Intermediary ('Confused Deputy')