SB2026070136 - Improper access control in LiteLLM

Description

This security bulletin contains information about 1 vulnerability.

1) Improper access control (CVE-ID: N/A)

CWE-ID: CWE-284 - Improper Access Control

CVSSv4: 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

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 update from vendor's website.

References

• https://github.com/BerriAI/litellm/security/advisories/GHSA-72m8-9m7m-h278
• https://github.com/BerriAI/litellm/releases/tag/v1.82.0-stable