Improper access control in LiteLLM - CVE-2026-35029
Published: April 7, 2026
Vulnerability identifier: #VU125065
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-35029
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: LiteLLM
Affected software:
LiteLLM
LiteLLM
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code, disclose sensitive information, and escalate privileges.
The vulnerability exists due to improper access control in the /config/update endpoint when handling configuration update requests. A remote user can modify proxy configuration and environment variables to execute arbitrary code, disclose sensitive information, and escalate privileges.
The issue can be exploited by a user who is already authenticated into the platform.
How to mitigate CVE-2026-35029
Install security update from vendor's website.