AUGUST 26, 2026
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Case File

CVE-2026-12856

HIGH · CVSS 8.8 EPSS 0.29% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-29 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. It affects Java. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-12856
Severity
HIGH
CVSS
8.8
EPSS
0.29%
Java

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)