{"id":"CVE-2026-59118","title":"Copilot Cowork Elevation of Privilege Vulnerability","summary":"Improper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.","severity":"critical","cvss":9.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-285"],"vendor":"Microsoft","product":"Copilot Cowork","affected":["copilot_cowork -"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-06T00:00:00+00:00"},"published":"2026-08-06","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:47:35.795Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59118","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-59118","label":"Copilot Cowork Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00716,"epssPercentile":0.51724,"ingestedAt":"2026-09-08T18:07:34.886Z","slug":"CVE-2026-59118","body":"## Overview\n\nImproper authorization in Copilot Cowork allows an unauthorized attacker to elevate privileges over a network.\n\n## Affected\n\n- `copilot_cowork -`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}