Vulnerability in Microsoft Visual Studio Code

CVE-2026-81356

Inconsistent interpretation of http requests ('http request/response smuggling') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

Vulnerability class: HTTP Request Smuggling

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-81356?
CVE-2026-81356 is a high-severity vulnerability in Microsoft Visual Studio Code, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 8.2/10. Published 2026-09-08.
How severe is CVE-2026-81356?
High severity. CVSS v3 base score is 8.2 out of 10.