CVE-2026-71211
mlflow - Unvalidated Gateway Secret api_base Enables SSRF via Gateway Proxy Endpoint
HIGH 7.1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.29 % · percentile 21 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- TuranSec
- NVD status
- Deferred
Description
MLflow's AI Gateway accepts an auth_config.api_base value when creating a gateway secret (mlflow/server/handlers.py, _create_gateway_secret) with no validation of scheme, host, or IP range; the value is stored verbatim. The gateway proxy endpoint (mlflow/server/gateway_api.py, raw_proxy) subsequently issues an HTTP request to that stored api_base plus a caller-supplied path and returns the full response body.
Weaknesses (CWE)
- CWE-918 — Server-Side Request Forgery
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | TuranSec |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | NVD · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (Secondary) |
Advisories
- GHSA-h7x2-h6g9-p789 — MLflow AI Gateway permits SSRF through an unvalidated api_base
- PYSEC-2026-3865 — MLflow AI Gateway permits SSRF through an unvalidated api_base
European references
- ENISA EUVD · EUVD-2026-53208
- GCVE · GCVE-0-2026-71211
Affected products
| Product | Versions |
|---|---|
| mlflow · mlflow | affected 0 ≤ 3.14.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |