{"id":"CVE-2026-26141","aliases":["EUVD-2026-10700","GHSA-rfgw-m548-mw46"],"status":"published","title":"Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability","description":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00338,"percentile":0.27382,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287","CWE-863"],"published":"2026-03-10T17:05:22Z","modified":"2026-10-15T15:53:03Z","products":[{"vendor":"microsoft","product":"azure automation hybrid worker windows extension"},{"vendor":"microsoft","product":"azure_automation_hybrid_worker_windows_extension"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26141","tags":["vendor-advisory","patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26141"},{"url":"https://github.com/advisories/GHSA-rfgw-m548-mw46"}],"sources":{"cve":[{"id":"CVE-2026-26141","title":"Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability","description":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T17:05:22.943Z","modified":"2026-10-15T15:53:03.494Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T13:38:20.971157Z"}],"euvd":[{"id":"EUVD-2026-10700","description":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T17:05:22Z","modified":"2026-10-15T15:53:03Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-02T17:00:12.978606Z"}],"ghsa":[{"id":"GHSA-rfgw-m548-mw46","title":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","description":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T18:31:21Z","modified":"2026-03-13T18:31:35Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287","CWE-863"],"updated_at":"2026-11-02T15:06:35.870837Z"}],"nvd":[{"id":"CVE-2026-26141","description":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally.","status":"published","published":"2026-03-10T18:18:42.957Z","modified":"2026-06-17T10:25:47.87Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287","CWE-863"],"updated_at":"2026-11-02T14:12:08.98071Z"}]}}