{"id":"CVE-2026-26141","state":"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.","publishedAt":"2026-03-10T17:05:22.943Z","updatedAt":"2026-10-15T15:53:03.494Z","severity":{"score":7.8,"label":"High","version":"3.1","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","source":"microsoft"},"assigner":"microsoft","products":["Microsoft Azure Automation Hybrid Worker Windows Extension"],"affected":[{"vendor":"Microsoft","product":"Azure Automation Hybrid Worker Windows Extension","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.3.74","versionType":"custom"}]}],"references":["https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26141"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/26xxx/CVE-2026-26141.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-26141","state":"PUBLISHED","datePublished":"2026-03-10T17:05:22.943Z","dateUpdated":"2026-10-15T15:53:03.494Z","assignerShortName":"microsoft","assignerOrgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateReserved":"2026-02-11T16:24:51.134Z"},"containers":{"cna":{"title":"Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability","descriptions":[{"lang":"en-US","value":"Improper authentication in Azure Arc allows an authorized attacker to elevate privileges locally."}],"affected":[{"vendor":"Microsoft","product":"Azure Automation Hybrid Worker Windows Extension","versions":[{"version":"1.0.0","status":"affected","lessThan":"1.3.74","versionType":"custom"}]}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26141","name":"Hybrid Worker Extension (Arc‑enabled Windows VMs) Elevation of Privilege Vulnerability","tags":["vendor-advisory","patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","baseSeverity":"HIGH","baseScore":7.8,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en-US","type":"CWE"}]}],"providerMetadata":{"shortName":"microsoft","orgId":"f38d906d-7342-40ea-92c1-6c4a2c6478c8","dateUpdated":"2026-10-15T15:53:03.494Z"},"datePublic":"2026-03-10T14:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:microsoft:azure_automation_hybrid_worker_windows_extension:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.3.74"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-05T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-26141"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-11T03:56:19.381Z"}}]}}}