CVE-2026-78462: Microsoft Visual Studio Code authorization bypass in user-controlled key

CVE-2026-78462 · Severity: high · CVSS 8.8 · Published 2026-09-08

Visual Studio Code is a widely-used code editor that developers rely on for secure development. This vulnerability allows an attacker to bypass authorization controls over the network by manipulating user-controlled cryptographic keys, potentially granting unauthorized access to protected features or data without proper authentication.

Technologies: Microsoft Visual Studio Code. Vendors: Microsoft.

Quick answers

Is CVE-2026-78462 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-78462 being exploited in the wild.
How severe is CVE-2026-78462?
High severity, with a CVSS score of 8.8, published 8 September 2026.
Which products and versions are affected?
Microsoft Visual Studio Code <UNKNOWN>.
Is there a fix for CVE-2026-78462?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-78462 attacked?
It is attacked over the network.
Am I affected by CVE-2026-78462?
Check whether you run Microsoft Visual Studio Code at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This is an authorization bypass vulnerability in Visual Studio Code caused by insufficient validation of user-controlled cryptographic keys. An unauthenticated attacker can send a specially crafted network request with a manipulated key to bypass the authorization mechanism and access security-controlled features. The vulnerability requires network access to the affected instance and does not require user interaction. A successful exploit could allow an attacker to circumvent security controls and gain unauthorized access to protected functionality.

Affected products

  • Microsoft Visual Studio Code <UNKNOWN>

Timeline

  • 2026-09-08: disclosed

References

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