What is CVE-2026-78462?

CVE-2026-78462 is a high-severity vulnerability in Microsoft Visual Studio Code, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-09-08.

How severe is CVE-2026-78462?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Microsoft Visual Studio Code

CVE-2026-78462

Authorization bypass through user-controlled key in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Microsoft Visual Studio Code

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-78462?: CVE-2026-78462 is a high-severity vulnerability in Microsoft Visual Studio Code, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-78462?: High severity. CVSS v3 base score is 8.8 out of 10.