HTTP Request/Response Smuggling Vulnerability in Visual Studio Code by Microsoft
CVE-2026-81356

8.2HIGH

Key Information:

Vendor

Microsoft
Status
Visual Studio Code
Vendor
CVE Published:
8 September 2026

What is CVE-2026-81356?

An inconsistency in the interpretation of HTTP requests within Visual Studio Code allows unauthorized attackers to exploit this vulnerability to bypass essential security features. This flaw can facilitate unauthorized access over network communications, posing risks to system integrity and confidentiality. It is critical for users to keep their software up-to-date to mitigate potential threats associated with this vulnerability.

Affected Version(s)

Visual Studio Code 1.0.0 < 1.136.2

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.