{"cve":"CVE-2026-33865","nvd":{"published":"2026-04-07T13:16:46.840","modified":"2026-06-17T10:38:13.553","status":"Analyzed","description":"MLflow is vulnerable to Stored Cross-Site Scripting (XSS) caused by unsafe parsing of YAML-based MLmodel artifacts in its web interface. An authenticated attacker can upload a malicious MLmodel file containing a payload that executes when another user views the artifact in the UI. This allows actions such as session hijacking or performing operations on behalf of the victim. \n\nThis issue affects MLflow version through 3.10.1","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N","score":5.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors","https://cert.pl/en/posts/2026/04/CVE-2026-33865/","https://github.com/mlflow/mlflow/pull/21435"],"products":["lfprojects:mlflow"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-33865","score":0.00218,"percentile":0.12328,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-fh64-r2vc-xvhr","url":"https://osv.dev/vulnerability/GHSA-fh64-r2vc-xvhr","summary":"MLflow is vulnerable to Stored Cross-Site Scripting (XSS) caused by unsafe parsing of YAML-based MLmodel artifacts in its web interface","modified":"2026-09-10T03:50:44.231753603Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":["<3.11.1"],"fixed":["3.11.1"]}]},{"id":"PYSEC-2026-93","url":"https://osv.dev/vulnerability/PYSEC-2026-93","summary":"","modified":"2026-06-10T17:02:20.155874108Z","packages":[{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow","ranges":["<3.11.0rc0"],"fixed":["3.11.0rc0"]}]}],"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."]}