{"cve":"CVE-2026-2393","nvd":{"published":"2026-05-11T18:16:31.500","modified":"2026-06-17T10:30:53.350","status":"Analyzed","description":"A Server-Side Request Forgery (SSRF) vulnerability exists in MLflow versions prior to 3.9.0. The `_create_webhook()` function in `mlflow/server/handlers.py` accepts a user-controlled `url` parameter without validation, and the `_send_webhook_request()` function in `mlflow/webhooks/delivery.py` sends HTTP POST requests to this attacker-controlled URL. This allows an authenticated attacker to force the MLflow backend to send HTTP requests to internal services, cloud metadata endpoints, or arbitrary external servers. The lack of input sanitization, URL scheme filtering, or allowlist validation on the webhook URL enables exploitation, potentially leading to cloud credential theft, internal network access, and data exfiltration.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","score":7.1},"cwes":["CWE-918"],"references":["https://github.com/mlflow/mlflow/commit/64aa0ab7207f9c649b59ba1a5f40d82196817389","https://huntr.com/bounties/04ef100d-06b5-4a70-95b1-b7be23aa8150","https://huntr.com/bounties/04ef100d-06b5-4a70-95b1-b7be23aa8150"],"products":["lfprojects:mlflow"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-2393","score":0.00288,"percentile":0.2135,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-65h7-c7c4-mghx","url":"https://osv.dev/vulnerability/GHSA-65h7-c7c4-mghx","summary":"MLflow Has a Server-Side Request Forgery (SSRF) Vulnerability","modified":"2026-07-13T07:26:23.062638284Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":["<3.9.0"],"fixed":["3.9.0"]}]},{"id":"PYSEC-2026-2219","url":"https://osv.dev/vulnerability/PYSEC-2026-2219","summary":"","modified":"2026-07-13T16:45:08.114491424Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":["<3.9.0"],"fixed":["3.9.0"]}]}],"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."]}