{"id":"CVE-2026-2611","title":"In MLflow version 3.9.0, the MLflow Assistant feature introduced improper origin validation in its /ajax-api endpoints","summary":"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 wit…","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-346","CWE-940"],"vendor":"lfprojects","product":"mlflow","affected":["mlflow >= 3.9.0, < 3.10.0"],"patched":["mlflow 3.10.0"],"published":"2026-05-19","updated":"2026-10-14","sourceUpdated":"2026-10-14T20:10:00.190","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-2611","references":[{"url":"https://github.com/mlflow/mlflow/commit/8f9c8a53af90842944101eb8b7d60706822c81bc","label":"security@huntr.dev"},{"url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","label":"security@huntr.dev"},{"url":"https://access.redhat.com/security/cve/CVE-2026-2611","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2479797","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://huntr.com/bounties/8462addd-b464-4a84-b6a2-5529604e6e5a","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2611.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-2611"},{"url":"https://github.com/advisories/GHSA-67c5-x5mf-rppq"},{"url":"https://github.com/mlflow/mlflow"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/mlflow/PYSEC-2026-418.yaml"},{"url":"https://pypi.org/project/mlflow"}],"tags":["nvd","osv","pip","ghsa"],"epss":0.00384,"epssPercentile":0.32253,"aliases":["GHSA-67c5-x5mf-rppq","BIT-mlflow-2026-2611","PYSEC-2026-418"],"ecosystem":"pip","ingestedAt":"2026-10-05T21:34:25.117Z","slug":"CVE-2026-2611","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `mlflow >= 3.9.0, < 3.10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `mlflow 3.10.0`\n\n## Package advisory (CVE-2026-2611)\n\nAffected packages:\n\n- `mlflow >= 3.9.0, < 3.10.0`\n\nPatched in:\n\n- `mlflow 3.10.0`\n\nSource: https://osv.dev/vulnerability/GHSA-67c5-x5mf-rppq","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}