Information disclosure in Litellm

CVE-2025-11203

LiteLLM Information health API_KEY Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of LiteLLM. Authentication is required to exploit this vulnerability. The specific flaw exists within the handling of the API_KEY parameter provided to the health endpoint. The issue results from exposing sensitive information to an unauthorized actor. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-26585.

Vulnerability class: Information Disclosure

EPSS: 0.004 (34.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-11203?
CVE-2025-11203 is a low-severity vulnerability in Litellm, classified under Information Disclosure. CVSS score: 3.5/10. Published 2025-10-29.
How severe is CVE-2025-11203?
Low severity. CVSS v3 base score is 3.5 out of 10.
Is CVE-2025-11203 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.