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CVE-2026-71211

HighPublished

mlflow - Unvalidated Gateway Secret api_base Enables SSRF via Gateway Proxy Endpoint

Published: Aug 5, 2026
Updated: Aug 10, 2026
Assigning CNA: TuranSec
Evidence observed: Aug 6, 2026

Primary CVSS

7.1/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 17.2%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2026-71211-exploitExploit
CVE-2026-71211 exploit

Responsible use

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