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Vulnerabilities

Vulnerability · CVE-2026-35029

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format.

Published Apr 6, 2026 · catalog updated Jul 15, 2026 · LiteLLM LiteLLM

Patch now

CVE-2026-35029 is in the CISA known-exploited catalog. Confirm LiteLLM LiteLLM against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.7
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.98%
Remediation
Remediation guidance
Affected products
cpe litellm/litellm · vendor LiteLLM LiteLLM

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe litellm/litellmversion unspecified
  • vendor LiteLLM LiteLLMversion unspecified

How to fix CVE-2026-35029

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-35029 is in the CISA known-exploited catalog. Confirm LiteLLM LiteLLM against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-425: Direct Request (Forced Browsing); CWE-863: Incorrect Authorization. EPSS 3.98%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 6, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  2. Apr 6, 2026 · NIST NVD

    Detected

    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 co

  3. Jul 15, 2026 · NIST NVD

    Updated

    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 co

Sources

  • CVE.orgVulnerability recordCVE-2026-35029

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-35029

    30-day exploitation probability 4.0%

    first.org
  • NIST NVDVulnerability recordCVE-2026-35029

    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 configura

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2026-35029

    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 configura

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.