What is CVE-2026-81376?

CVE-2026-81376 is a critical-severity vulnerability in Microsoft Visual Studio Code, classified under Protection Mechanism Failure. CVSS score: 9.6/10. Published 2026-09-08.

How severe is CVE-2026-81376?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Vulnerability in Microsoft Visual Studio Code

CVE-2026-81376

Incomplete comparison with missing factors in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

Microsoft Visual Studio Code

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure
CWE-1023

References

secure@microsoft.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-81376?: CVE-2026-81376 is a critical-severity vulnerability in Microsoft Visual Studio Code, classified under Protection Mechanism Failure. CVSS score: 9.6/10. Published 2026-09-08.
How severe is CVE-2026-81376?: Critical severity. CVSS v3 base score is 9.6 out of 10.