Improper access control in LiteLLM - CVE-2026-35029

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Main Vulnerability Database Vulnerabilities #VU125065

Improper access control in LiteLLM - CVE-2026-35029

Published: April 7, 2026


Vulnerability identifier: #VU125065
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-35029
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

LiteLLM
Python for Scientific Computing

How to mitigate CVE-2026-35029

Install security update from vendor's website.

LiteLLM - update to 1.83.0
Python for Scientific Computing - update to 4.3.2

External References

Related Security Bulletins