{"schemaVersion":3,"id":"CVE-2026-2611","aliases":["GHSA-67c5-x5mf-rppq","BIT-mlflow-2026-2611","PYSEC-2026-418"],"status":"published","duplicateOf":null,"title":null,"description":"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.","dates":{"published":"2026-05-19T09:16:42.745Z","modified":"2026-07-15T02:49:09.458Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.6,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":9.6,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":9.6,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Pypi","score":9.6,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","exploitability":7.2,"impact":10,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":9.6,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":9.6,"severity":"critical","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00414,"percentile":0.34395,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.02999999999999995,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00384},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00414,"percentile":0.34395}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00384,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00414,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00414,"percentile":0.34395}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_28F6F54E680C6CEA","name":"Exploit Reference (huntr.com)","source":"reference","url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-346","name":"Origin Validation Error","description":"The product does not properly verify that the source of data or communication is valid.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/346.html"},{"id":"CWE-940","name":"Improper Verification of Source of a Communication Channel","description":"The product establishes a communication channel to handle an incoming request that has been initiated by an actor, but it does not properly verify that the request is coming from the expected origin.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/940.html"}],"affected":[{"vendor":"lfprojects","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 3.9.0, < 3.10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.9.0, < 3.10.0","eol":null,"hubHref":"/vendor/lfprojects/mlflow"},{"vendor":"mlflow","product":"mlflow/mlflow","name":"mlflow/mlflow","label":"mlflow/mlflow","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 3.10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 3.10.0","eol":null,"hubHref":"/vendor/mlflow/mlflowmlflow"},{"vendor":"PyPI","product":"mlflow","name":"mlflow","label":"mlflow","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/mlflow","purlType":"pypi","versions":[{"text":"≥ 3.9.0, < 3.10.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 3.9.0, < 3.10.0","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","label":"huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","hostname":"huntr.com","tags":["WEB","Exploit","Third Party Advisory"]},{"url":"https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc","label":"github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc","hostname":"github.com","tags":["WEB","Patch"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-2611","label":"access.redhat.com/security/cve/CVE-2026-2611","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","WEB"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479797","label":"bugzilla.redhat.com/show_bug.cgi?id=2479797","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","WEB"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json","label":"security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json","hostname":"security.access.redhat.com","tags":["X Sadp Csaf Vex"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2611","label":"nvd.nist.gov/vuln/detail/CVE-2026-2611","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq","label":"github.com/advisories/GHSA-67c5-x5mf-rppq","hostname":"github.com","tags":["Advisory"]},{"url":"https://github.com/mlflow/mlflow","label":"github.com/mlflow/mlflow","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/mlflow/PYSEC-2026-418.yaml","label":"github.com/pypa/advisory-database/tree/main/vulns/mlflow/PYSEC-2026-418.yaml","hostname":"github.com","tags":["WEB"]},{"url":"https://pypi.org/project/mlflow","label":"pypi.org/project/mlflow","hostname":"pypi.org","tags":["WEB","PACKAGE"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-05-19T09:16:42.745Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-15T02:49:09.458Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T10:10:26.320Z","stale":false,"partial":false}}