CVE WatchJul 15, 2026

CVE-2026-12856

A flaw was found in the vscode-java extension, which provides Java language support for Visual Studio Code. The extension incorrectly trusts

CVSS

8.8

High

EPSS

0.3%

p21

KEV

—

Exploit Today

0-100

Published: Jun 29, 2026 · Last modified: Jul 15, 2026 · CWE-88

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-06-302026-07-21

Technical 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.

Official references

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