SB20260610110 - Multiple vulnerabilities in Microsoft Visual Studio Code

Description

This security bulletin contains information about 3 vulnerabilities.

1) Path traversal (CVE-ID: CVE-2026-47287)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in Visual Studio Code. A remote attacker can trick a victim to open a specially crafted file and perform tampering attack. 

2) Information disclosure (CVE-ID: CVE-2026-47284)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in Visual Studio Code. A remote attacker can trick a victim to open a specially crafted file and gain unauthorized access to sensitive information on the system.

3) Input validation error (CVE-ID: CVE-2026-47281)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to escalate privileges on the target system.

The vulnerability exists due to insufficient validation of user-supplied input in Visual Studio Code. A remote attacker can trick a victim to open a specially crafted code-workspace file and gain elevated privileges on the system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47287
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47284
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47281