CVE-2026-35029
Description
A flaw was found in LiteLLM, an AI Gateway proxy server. An authenticated user can exploit a missing authorization check on the /config/update endpoint. This allows the user to modify proxy configurations and environment variables, leading to remote code execution by registering custom endpoint handlers. Additionally, this vulnerability enables unauthorized reading of server files and potential takeover of privileged accounts through environment variable manipulation.
Statement
This Important flaw in LiteLLM allows an authenticated user to bypass authorization on the /config/update endpoint. This enables modification of proxy configurations and environment variables, leading to remote code execution, unauthorized file access, and potential account takeover. Red Hat Ansible Automation Platform, Lightspeed Core, and Red Hat OpenShift AI are affected.
Mitigation
Limit network access to the LiteLLM service to trusted networks or hosts only. Implement firewall rules to restrict inbound connections to the LiteLLM service's port, ensuring that only authorized systems can reach the service. This reduces the exposure of the `/config/update` endpoint to unauthorized authenticated users.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.8 | 8.8 | 8.8 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | High | High | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity,Availability,Access Control
Technical Impact: Read Application Data; Modify Application Data; Execute Unauthorized Code or Commands; Gain Privileges or Assume Identity
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