VULNERABILITY INTELLIGENCE

CVE-2026-12856

CVSS score8.8 HIGH
EPSS probability0.55%
CISA KEVNot currently listed
Published2026-06-29
Last modified2026-10-25
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-88
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-88

Primary references