{"cve":"CVE-2026-64849","nvd":{"published":"2026-08-17T22:17:23.580","modified":"2026-10-26T13:10:00.140","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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N","score":9.3},"cwes":["CWE-918"],"references":["https://github.com/mlflow/mlflow/commit/ba949522477cbd5915aa55d29b0cfad7d5ddf939","https://github.com/mlflow/mlflow/issues/24179","https://github.com/mlflow/mlflow/pull/24258","https://github.com/mlflow/mlflow/releases/tag/v3.15.0","https://github.com/mlflow/mlflow/security/advisories/GHSA-7gwp-5pfp-969j"],"products":["lfprojects:mlflow"],"source":"nvd","synced_at":"2026-10-26T13:39:24.642594360+00:00"},"epss":{"cve":"CVE-2026-64849","score":0.10017,"percentile":0.95581,"date":"2026-10-25"},"kev":{"cve":"CVE-2026-64849","date_added":"2026-08-19","due_date":"2026-09-02","vendor":"MLflow","product":"MLflow","known_ransomware":false},"osv":[{"id":"GHSA-7gwp-5pfp-969j","url":"https://osv.dev/vulnerability/GHSA-7gwp-5pfp-969j","summary":"MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)","modified":"2026-10-02T18:30:39.856988982Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":[">=3.3.0 <3.15.0"],"fixed":["3.15.0"]}]},{"id":"PYSEC-2026-3687","url":"https://osv.dev/vulnerability/PYSEC-2026-3687","summary":"MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)","modified":"2026-08-21T08:40:32.349552541Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":["<3.15.0"],"fixed":["3.15.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}