CVE-2026-45644

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.

Score

CVSS 3.1 8.0 High

Status

Analyzed - secure@microsoft.com

Published

2026-06-09

Last modified

2026-09-24

Weaknesses

CWE-79

Affected products

• Live Share Canvas (Microsoft)
• Live Share Canvas (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45644