Vulnerability in Hkuds Openharness
CVE-2026-6819
HKUDS OpenHarness prior to PR #156 remediation exposes plugin lifecycle commands including /plugin install, /plugin enable, /plugin disable, and /reload-plugins to remote senders by default. Attackers who gain access through the channel layer can remotely manage plugin trust and activation state, enabling unauthorized plugin installation and activation on the system.
EPSS: 0.003 (22.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Hkuds Openharness — versions 0
Weakness classification (CWE)
References
- Pull Request (issue-tracking, Exploit, Patch, patch, Issue Tracking)
- Patch Commit (Patch, patch)
- Release Notes (Release Notes)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-6819?
- CVE-2026-6819 is a high-severity vulnerability in Hkuds Openharness, classified under Incorrect Default Permissions. CVSS score: 8.8/10. Published 2026-04-21.
- How severe is CVE-2026-6819?
- High severity. CVSS v3 base score is 8.8 out of 10.