CVE-2025-14279
published 2026-01-12CVE-2025-14279: MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This…
PriorityP346high8.1CVSS 3.0
AVNACLPRNUIRSUCHIHAN
EPSS
0.21%
11.7th percentile
MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| lfprojects | mlflow | < 3.5.0 | 3.5.0 |
| lfprojects | mlflow | >= 0 < 3.15.0 | 3.15.0 |
| mlflow | mlflow_mlflow | >= 0 < 3.5.0 | 3.5.0 |
| mlflow | mlflow_mlflow | >= unspecified < 3.5.0 | 3.5.0 |
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GHSA
MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)
ghsa·2026-08-17
CVE-2026-64849 [CRITICAL] CWE-918 MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)
MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)
### Summary
The default MLflow Tracking Server (`mlflow server`, no authentication, default SQLite backend) exposes the model-registry webhooks API unauthenticated, including a synchronous `POST /api/2.0/mlflow/webhooks/{id}/test` endpoint that returns the upstream response status and body to the caller. The SSRF guard added in PR #20747 (`_validate_webhook_url`, shipped in 3.10.0) resolves the webhook hostname and rejects non-public IPs, but it is bypassable: delivery follows HTTP redirects (no `allow_redirects=False`) and never pins the validated IP. An attacker hosts a public HTTPS endpoint that passes the guard and returns `302 Location: http://
GHSA
MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
ghsa·2026-01-12
CVE-2025-14279 [HIGH] CWE-346 MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.
OSV
MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
osv·2026-01-12
CVE-2025-14279 [HIGH] MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
MLFlow is vulnerable to DNS rebinding attacks due to a lack of Origin header validation
MLFlow versions up to and including 3.4.0 are vulnerable to DNS rebinding attacks due to a lack of Origin header validation in the MLFlow REST server. This vulnerability allows malicious websites to bypass Same-Origin Policy protections and execute unauthorized calls against REST endpoints. An attacker can query, update, and delete experiments via the affected endpoints, leading to potential data exfiltration, destruction, or manipulation. The issue is resolved in version 3.5.0.
No detection rules found.
No public exploits indexed.
2026-01-12
Published