CVE-2026-45644 HIGH

CVE-2026-45644: Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability

Vendor Microsoft
Product Microsoft Live Share Canvas SDK
Weakness CWE-79 · XSS
Published June 9, 2026
Last update June 15, 2026
View on NVD All CVEs

CVSS base score

8.0/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 15, 2026 Record updated

Related vulnerabilities

04Related CVE

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