CVE-2026-35029

CVE Enrichment

CVSS: 8.7 HIGH
EPSS: 3.98%
EPSS Percentile: 90.26%
CISA KEV: Not listed

Description

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.0, the /config/update endpoint does not enforce admin role authorization. A user who is already authenticated into the platform can then use this endpoint to modify proxy configuration and environment variables, register custom pass-through endpoint handlers pointing to attacker-controlled Python code, achieving remote code execution, read arbitrary server files by setting UI_LOGO_PATH and fetching via /get_image, and take over other privileged accounts by overwriting UI_USERNAME and UI_PASSWORD environment variables. Fixed in v1.83.0.

Technical Details

CVSS Version: 4.0
CNA / NVD Source: security-advisories@github.com
Published: 07-Apr-2026 00:17
Last Modified: 15-Jul-2026 09:20
EPSS Date: 2026-10-12
CWE: CWE-863, CWE-425

CVSS Vector


            CVSS:4.0                            AV:N /
                            AC:L /
                            AT:N /
                            PR:L /
                            UI:N /
                            VC:H /
                            VI:H /
                            VA:H /
                            SC:L /
                            SI:L /
                            SA:N /
                            E:X /
                            CR:X /
                            IR:X /
                            AR:X /
                            MAV:X /
                            MAC:X /
                            MAT:X /
                            MPR:X /
                            MUI:X /
                            MVC:X /
                            MVI:X /
                            MVA:X /
                            MSC:X /
                            MSI:X /
                            MSA:X /
                            S:X /
                            AU:X /
                            R:X /
                            V:X /
                            RE:X /
                            U:X

Affected Products / Versions

litellm / litellm
Version / affected range: * · before (exclusive) 1.83.0
cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*

References

Last enrichment sync: 12-Oct-2026 23:36
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (1)

PR #22095 addressed the default role (changed from PROXY_ADMIN to INTERNAL_USER) and added PROXY_ADMIN checks to the guardrail endpoints. The config update endpoint was fixed separately in v1.83.0 (CVE-2026-35029). Researchers Detail LiteLLM Authentication Bypass, Root-Level RCE and Cloud Credential Theft

CVE (2)

MITRE ATT&CK (4)

Vendors (2)

Products (9)

Tools (1)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.