CVE-2026-45644CWE-79

Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability

High · published June 9, 2026

CVSS v3.1
8.0
EPSS
1%
Percentile
56.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.0 · HIGH
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
CVSS v4.0
Not supplied
EPSS
0.00809 · 56.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-09T17:05Z
EPSS history
Timeline
  • 09 JUN 17:05Z
    Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability
    cvelistv5