{"id":"CVE-2026-2611","aliases":["BIT-mlflow-2026-2611","GHSA-67c5-x5mf-rppq","PYSEC-2026-418"],"url":"https://o3.security/vulnerability/CVE-2026-2611","summary":"Improper Origin Validation in mlflow/mlflow","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.","published":"2026-05-19T09:16:42.745Z","modified":"2026-08-12T03:51:12.079713704Z","cvss":{"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"},"epss":{"score":0.00384,"percentile":0.3142,"asOf":"2026-08-14"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"mlflow","fixedVersion":"3.10.0"}],"fix":{"url":"https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc","label":"mlflow/mlflow@8f9c8a5"},"references":[{"type":"WEB","url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-2611"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/2xxx/CVE-2026-2611.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2611"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479797"},{"type":"FIX","url":"https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:12.079713704Z"}}