{"id":"CVE-2026-45644","title":"Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability","summary":"Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Live Share Canvas SDK allows an authorized attacker to elevate privileges over a network.","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","cvssSource":"cna","cwe":["CWE-79"],"vendor":"Microsoft","product":"Microsoft Live Share Canvas SDK","affected":["live_share_canvas_sdk >= 1.0.0 < 1.4.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-06-10T13:42:41.226873Z"},"published":"2026-06-09","updated":"2026-09-24","sourceUpdated":"2026-09-24T13:44:34.865Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-45644","references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45644","label":"Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability"}],"tags":["cve.org"],"epss":0.00554,"epssPercentile":0.45109,"ingestedAt":"2026-09-24T14:44:21.391Z","slug":"CVE-2026-45644","body":"## Overview\n\nImproper neutralization of input during web page generation ('cross-site scripting') in Microsoft Live Share Canvas SDK allows an authorized attacker to elevate privileges over a network.\n\n## Affected\n\n- `live_share_canvas_sdk >= 1.0.0 < 1.4.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":44,"depthScoreParts":{"impact":44,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}