Experiment data compromise via unchecked request origins
Published Jan 12, 2026 · Updated Jan 12, 2026
DNS rebinding in the MLflow REST server before 3.5.0 allows remote attackers to read, update, and delete experiments. The server accepts browser requests without validating Origin and Host headers, letting a malicious site pivot the browser from attacker-controlled DNS to the MLflow service. Exploitation requires a user to visit the malicious site while the browser can reach the server, exposing experiment data to disclosure, manipulation, and deletion.
Summary
What happened
DNS rebinding in the MLflow REST server before 3.5.0 allows remote attackers to read, update, and delete experiments. The server accepts browser requests without validating Origin and Host headers, letting a malicious site pivot the browser from attacker-controlled DNS to the MLflow service. Exploitation requires a user to visit the malicious site while the browser can reach the server, exposing experiment data to disclosure, manipulation, and deletion.
The record
- CVE
- CVE-2025-14279
- Published
- Jan 12, 2026
- Updated
- Jan 12, 2026
- Vendor
- MLflow Project
- Product
- MLflow
- Classifications
- CWE-346, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 12, 2026CVE publishedPublication date reported by the CVE source.
- Jan 12, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <3.5.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Huntr DNS rebinding proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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