MSRC-CVE-2026-70334 — Visual Studio Code Security Feature Bypass Vulnerability

Summary

Impact: Security Feature Bypass. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

What security feature could be bypassed by successfully exploiting this vulnerability?
An attacker who successfully exploited this vulnerability could bypass the Visual Studio Code Workspace Trust feature, allowing content from an untrusted workspace to run commands or code without the user first granting trust. See Workspace Trust for more information.

Security updates
1.136.2 — https://code.visualstudio.com/updates/v1_136

Vulnerabilities 1

High 7.8

CVE-2026-70334

Visual Studio Code Security Feature Bypass Vulnerability

Incomplete list of disallowed inputs in Visual Studio Code allows an unauthorized attacker to bypass a security feature locally.

Microsoft Visual Studio Code

Sep 8, 2026

Revision history

2026-09-11 #2
Acknowledgement Updated
2026-09-08 #1
Information published.

References

CVE-2026-70334 Visual Studio Code Security Feature Bypass Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70334
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss