{"items":[{"id":"NVI-00001227","kind":"vulnerability","title":"MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)","revision":5,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","CISA catalog date-added and due-date fields are not the original vulnerability disclosure date or universal legal deadlines.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-7gwp-5pfp-969j","CVE-2026-64849"],"plain_summary":"GitHub lists this reviewed advisory for mlflow. 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Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-02T18:21:52.000Z","value":"9.3 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8f10b8312f1b2ea1234768b31e89313d"},{"kind":"CISA_KEV","as_of":"2026-08-19T00:00:00.000Z","value":"Listed","meaning":"CISA lists known exploitation. This does not establish exploitation of your system.","source_id":"sr-b3538437ca4b74015c53bd63c74c713b"},{"kind":"CVSS","as_of":"2026-10-26T13:10:00.140Z","value":"9.3 CRITICAL (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-89d425bedb75a6c5e9183371e44ea40a"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"10.017%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.95621. Missing scores are unknown.","source_id":"sr-0b55ef5d48c8a35cf361e8d49139d4db"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-8f10b8312f1b2ea1234768b31e89313d","url":"https://github.com/advisories/GHSA-7gwp-5pfp-969j","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-64849","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:45:16.076Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-8f10b8312f1b2ea1234768b31e89313d"],"technology":"mlflow","known_exclusions":[],"conditions_summary":"### Summary\nThe default MLflow Tracking Server (`mlflow server`, no authentication, default SQLite backend) exposes the model-registry webhooks API unauthenticated, including a synchronous `POST /api/2.0/mlflow/webhooks/{id}/test` endpoint that returns the upstream response status and body to the caller. The SSRF guard added in PR #20747 (`_validate_webhook_url`, shipped in 3.10.0) resolves the webhook hostname and rejects non-public IPs, but it is bypassable: delivery follows HTTP redirects (no `allow_redirects=False`) and never pins the validated IP. An attacker hosts a public HTTPS endpoint that passes the guard and returns `302 Location: http://169.254.169.254/...` (or `http://127.0.0.1:...`); MLflow follows it and never re-validates the redirect target. Because `/test` reflects the response body, this is an unauthenticated full-read SSRF on a default server.\n\n### Details\nThree facts combine:\n\n1. Webhook endpoints are unauthenticated on a default server. The only webhook authorization lives in the optional auth plugin (`mlflow/server/auth/__init__.py`, `WEBHOOK_BEFORE_REQUEST_HANDLERS`), which is not loaded by default.\n\n2. The guard validates but pins nothing — `mlflow/utils/va","public_affected_ranges":[">= 3.3.0, < 3.15.0"]},{"certainty":"source_listed","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"technology":"MLflow MLflow","known_exclusions":[],"conditions_summary":"CISA does not supply a complete application-specific affected range here. Follow the linked vendor advisory for version and configuration prerequisites.","public_affected_ranges":[]}],"null_published_at":"2026-11-04T10:04:41.583Z","source_updated_at":"2026-10-02T18:21:52.000Z","source_disclosed_at":"2026-08-17T21:58:51.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T20:54:12.600Z"},{"id":"NVI-00001227","kind":"vulnerability","title":"MLflow: Unauthenticated full-read SSRF in webhook delivery: _validate_webhook_url bypassed via unvalidated HTTP redirects (and DNS rebinding)","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","CISA catalog date-added and due-date fields are not the original vulnerability disclosure date or universal legal deadlines.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-7gwp-5pfp-969j","CVE-2026-64849"],"plain_summary":"GitHub lists this reviewed advisory for mlflow. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-c9c70faf4bc632592fad85dce5bf44b6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-02T18:21:52.000Z","value":"9.3 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-8f10b8312f1b2ea1234768b31e89313d"},{"kind":"CISA_KEV","as_of":"2026-08-19T00:00:00.000Z","value":"Listed","meaning":"CISA lists known exploitation. 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Null normalizes fields.","title":"GHSA-7gwp-5pfp-969j","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:40:00.567Z"},{"id":"sr-b3538437ca4b74015c53bd63c74c713b","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","basis":"official_catalog","notes":"CISA KEV; CC0 1.0. 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An attacker hosts a public HTTPS endpoint that passes the guard and returns `302 Location: http://169.254.169.254/...` (or `http://127.0.0.1:...`); MLflow follows it and never re-validates the redirect target. Because `/test` reflects the response body, this is an unauthenticated full-read SSRF on a default server.\n\n### Details\nThree facts combine:\n\n1. Webhook endpoints are unauthenticated on a default server. The only webhook authorization lives in the optional auth plugin (`mlflow/server/auth/__init__.py`, `WEBHOOK_BEFORE_REQUEST_HANDLERS`), which is not loaded by default.\n\n2. The guard validates but pins nothing — `mlflow/utils/va","public_affected_ranges":[">= 3.3.0, < 3.15.0"]},{"certainty":"source_listed","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"technology":"MLflow MLflow","known_exclusions":[],"conditions_summary":"CISA does not supply a complete application-specific affected range here. 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The catalog names MLflow MLflow; it does not establish that a particular visitor is exposed or compromised.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-c9c70faf4bc632592fad85dce5bf44b6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CISA_KEV","as_of":"2026-08-19T00:00:00.000Z","value":"Listed","meaning":"CISA lists known exploitation. 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Catalog assertions are not evidence of customer compromise.","title":"CVE-2026-64849","publisher":"CISA","observed_at":"2026-10-31T20:54:12.600Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-b3538437ca4b74015c53bd63c74c713b"],"technology":"MLflow MLflow","known_exclusions":[],"conditions_summary":"CISA does not supply a complete application-specific affected range here. Follow the linked vendor advisory for version and configuration prerequisites.","public_affected_ranges":[]}],"null_published_at":"2026-10-31T21:40:43.173Z","source_updated_at":"2026-08-19T00:00:00.000Z","source_disclosed_at":null,"is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T20:54:12.600Z"}],"next_cursor":null,"snapshot_revision":"42594"}