PT-2026-48008 · Microsoft · Live Share Canvas Sdk

Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-45644

Mitre

CVSS v3.1

8.0

High

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-45644

Affected Products

Live Share Canvas Sdk

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-45644 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45644 · Vendor Advisory