{"cve_id":"CVE-2026-64849","published":"2026-08-17T22:17:23.580000+00:00","last_modified":"2026-10-26T13:10:00.140000+00:00","vuln_status":"Analyzed","description":"MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Starting in 3.3.0 and prior to 3.15.0, the unauthenticated POST /api/2.0/mlflow/webhooks/{id}/test endpoint calls _validate_webhook_url() in mlflow/utils/validation.py only for the original URL while mlflow/webhooks/delivery.py follows redirects and re-resolves the hostname without pinning the validated address, allowing attackers to reach internal or cloud metadata services and receive response_status and response_body. This issue is fixed in version 3.15.0.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","base_score":9.3,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"CHANGED","impact_c":"HIGH","impact_i":"LOW","impact_a":"NONE","cwe_ids":["CWE-918"],"in_kev":true,"kev_date_added":"2026-08-19","kev_ransomware":false,"epss_score":0.10017,"epss_percentile":0.95615,"cap_rule_version":"0.1.1","stage":"RECON","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"PRIV","caps":["INFO_DISCLOSURE","LATERAL","PRIV_GAIN","TAMPER"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-10-28T03:44:17.114092+00:00","first_seen":"2026-08-17T22:17:23.580000+00:00","kev_first_seen":"2026-08-19T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["lfprojects"],"products":["mlflow"],"affected":[{"vendor":"lfprojects","product":"mlflow","ranges":["≥ 3.3.0 and < 3.15.0"]}]}