Improper access control in LiteLLM - #VU136051
Published: July 1, 2026
Vulnerability identifier: #VU136051
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
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 and disclose sensitive information.
The vulnerability exists due to improper access control in the Custom Code Guardrails production create/update paths when submitting custom Python code. A remote privileged user can create or update a guardrail with crafted code to execute arbitrary code and disclose sensitive information.
In deployments without a configured master key, callers could be treated as proxy administrators.
Remediation
Install security update from vendor's website.