CVE-2026-84377
LiteLLM: Authenticated SSRF and provider-credential exfiltration via unvalidated request-body routing parameters
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to versions 1.88.6 and 1.96.2, any authenticated LiteLLM proxy user could redirect an outbound provider call to a destination the user controls and cause the proxy to send its configured provider credentials to that destination. Request validation in litellm/proxy/auth/auth_utils.py, litellm/proxy/common_request_processing.py, litellm/proxy/health_endpoints/_health_endpoints.py, litellm/proxy/image_endpoints/endpoints.py, and litellm/proxy/litellm_pre_call_utils.py used incomplete checks that did not cover every sensitive parameter or inspect equivalent values across nested request fields, path values, and bracket-notation form data. Routing and credential parameters including api_base, base_url, model_list, fallbacks, and litellm_credential_name could therefore be applied without clearing the operator's stored key, exposing upstream provider credentials and other configured secrets and permitting server-side requests to internal services reachable by the proxy. This issue is fixed in versions 1.88.6 and 1.96.2.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Awaiting Analysis | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.54% · top 54% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIlitellmGHSA-3cv6-jpf6-8222 (opens in a new tab)
References (9)
- https://github.com/BerriAI/litellm/security/advisories/GHSA-3cv6-jpf6-8222 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/BerriAI/litellm/pull/36011 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/pull/36314 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/pull/36494 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/commit/473f72e63a9777d793fbbf57194d8ec4fb97bc1b (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/commit/820f247a6abba55cd87d130bef7bba7be3b29d37 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/commit/c898d341c02299cf2506d0d8e84cc67953043593 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/releases/tag/v1.88.6 (opens in a new tab)x_refsource_MISC
- https://github.com/BerriAI/litellm/releases/tag/v1.96.2 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3cv6-jpf6-8222 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-84377)Record last updated .