CVE-2026-45644 json
Microsoft Live Share Canvas SDK Elevation of Privilege Vulnerability
published 5mo ago modified last mo. also EUVD-2026-35568
- cvss
- 8.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Microsoft Microsoft Live Share Canvas SDK 1.4.2
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- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4mo ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.0 | 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 |
| CNA | 3.1 | 8.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Microsoft Live Share Canvas SDK
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-45644
vendor-advisory, patch
Sources
- CVE List CVE-2026-45644
- NVD CVE-2026-45644
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