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CVE-2026-12856

nvd nist
Published: Jun 29, 2026Modified: Jul 15, 2026

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: secalert@redhat.com (Secondary)

Description

A flaw was found in the vscode-java extension, which provides Java language support for Visual Studio Code. The extension incorrectly trusts all Markdown content in JavaDoc hovers, allowing a malicious Java file to include hidden commands. If a user clicks a specially crafted link within a JavaDoc hover popup, an attacker can execute arbitrary VS Code commands, which can lead to full system compromise in trusted workspaces.

Affected (1)

Redhat
1 product
Openshift Dev Spaces
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Openshift Dev Spaces
All versions

Related CWEs

CWE-88
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

References (8)

Source: secalert@redhat.com
Source: secalert@redhat.com
MitigationVendor Advisory
Source: secalert@redhat.com
Issue TrackingVendor Advisory
Source: secalert@redhat.com
Broken Link
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
MitigationVendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Issue TrackingVendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory

Timeline

No history available yet.