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Microsoft Security Response CenterCVE-2026-45644

Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability

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.

Read the vendor bulletin Get alerts for Microsoft Live Share Canvas SDK
8.0CVSS out of 10High severity
Scope

What the vendor says is affected

  • Microsoft Live Share Canvas SDK

Versions the vendor lists as fixed

  • 1.4.2
Next step

What the vendor recommends

Release Notes

Review the complete instructions on the vendor's site
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-45644View CVSS, KEV, EPSS, and threat context
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