CVE-2026-64849 - MLflow Server-Side Request Forgery Vulnerability

Technical Severity

CVSS v3.1 Metrics

CRITICAL

9.3 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

16.41 %

Predictive Probability

Percentile Rank

96.7 th

Documented as more likely to be exploited than 96.7% of known CVEs.

Detection Date

Aug 19, 2026

Remediation Due

Sep 02, 2026

CISA Catalog Active

Threat Analysis

MLflow contains a server-side request forgery vulnerability that can allow attackers to reach internal or cloud metadata services and receive response_status and response_body.

Remediation Directive

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

External Intelligence

https://github.com/mlflow/mlflow/pull/24258

https://github.com/mlflow/mlflow/issues/24179

CISA

CISA Advisory

https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk

CISA

CISA Advisory

https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2026-64849