CVE-2026-45644
High
Description
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.
SeverityHigh
CVSS8.0
Exploit probability—
Product
Microsoft Live Share Canvas
PublishedJun 9, 2026
First seenJun 9, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- microsoft live_share_canvas1.4.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft live_share_canvas | v < 1.4.2 | 1.4.2 |
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