{"schema":"threatline.record/2","record":{"id":"CVE-2026-2611","aliases":["BIT-mlflow-2026-2611","GHSA-67c5-x5mf-rppq","PYSEC-2026-418"],"summary":"MLflow: Improper Origin Validation in MLflow Assistant /ajax-api Endpoints Enables Browser-Mediated Local Command Execution","details":"In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints. This vulnerability allows a remote attacker to exploit cross-origin requests from a malicious webpage to interact with the MLflow Assistant running on a victim's local machine. By bypassing the loopback-only restriction, the attacker can modify the Assistant's configuration to enable full access, which in turn allows the execution of arbitrary commands via the Claude Code sub-agent. This issue is resolved in version 3.10.0.","categories":["Libraries & packages"],"product":"mlflow","vendor":"mlflow","ecosystem":"pip","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq","source_modified_at":"2026-10-05T21:33:12Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"mlflow"},"range":"= 3.9.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-2611","source_modified_at":"2026-07-15T02:49:09.458Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"mlflow/mlflow","vendor":"mlflow","versions":[{"version":"unspecified","lessThan":"3.10.0","status":"affected","versionType":"custom"}],"defaultStatus":null},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-67c5-x5mf-rppq","source_modified_at":"2026-10-05T21:45:03.626608223Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow"},"ranges":[{"events":[{"introduced":"3.9.0"},{"fixed":"3.10.0"}],"type":"ECOSYSTEM"}],"versions":["3.10.0rc0","3.9.0"]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq","source_modified_at":"2026-10-05T21:33:12Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"pip","name":"mlflow"},"version":"3.10.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-2611","source_modified_at":"2026-07-15T02:49:09.458Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"mlflow/mlflow","ecosystem":null},"version":"3.10.0","basis":"first unaffected version stated in the CVE record"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-67c5-x5mf-rppq","source_modified_at":"2026-10-05T21:45:03.626608223Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"ecosystem":"PyPI","name":"mlflow","purl":"pkg:pypi/mlflow"},"version":"3.10.0"}],"cvss":9.6,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00414,"percentile":0.34695,"score_date":"2026-10-23"},"published_at":"2026-05-19T09:16:42.745Z","modified_at":"2026-10-05T21:45:03.626608223Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T21:33:12Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-2611","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-07-15T02:49:09.458Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-67c5-x5mf-rppq","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-05T21:45:03.626608223Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-2611","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["GitHub Advisory Database","CVE List","OSV","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2611","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc"},{"source":"CVE List","url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","tags":["exploit"]},{"source":"CVE List","url":"https://access.redhat.com/security/cve/CVE-2026-2611","tags":["vdb-entry","x_refsource_REDHAT"]},{"source":"CVE List","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479797","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq","source":"GitHub Advisory Database"},{"url":"https://github.com/mlflow/mlflow","source":"GitHub Advisory Database"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/mlflow/PYSEC-2026-418.yaml","source":"GitHub Advisory Database"},{"url":"https://pypi.org/project/mlflow","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json","tags":["x_sadp-csaf-vex"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-05-19T13:26:07.361461Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"ecosystem","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-05T21:45:03.626608223Z","content_hash":"6684d646d264a829da4b4fcf39c3acabf5452d25e6adfe89db0a2fdf916c725a"}}