CVE-2026-6819: high-severity vulnerability in HKUDS OpenHarness
HKUDS OpenHarness Plugin Management Command Exposure
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
HKUDS · OpenHarnessRelated CVEs — HKUDS OpenHarness
In the same product, most dangerous first.
CVE-2026-40502HIGHOpenHarness Remote Administrative Command Injection via Gateway HandlerEPSS 1.7%CVE-2026-7551HIGHHKUDS OpenHarness Remote Command Execution via /bridge Slash CommandEPSS 0.6%CVE-2026-40503HIGHOpenHarness Path Traversal Information Disclosure via /memory showEPSS 0.4%CVE-2026-56695HIGHOpenHarness - Cross-Session Disclosure via /resume and /summary CommandsEPSS 0.4%CVE-2026-56696MEDIUMOpenHarness - Prompt Injection via /issue and /pr_comments Slash CommandsEPSS 0.4%CVE-2026-6823HIGHHKUDS OpenHarness Insecure Default Remote Channel AllowlistEPSS 0.3%