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.
CVSS
- Version: 4.0
- Vector: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Base score: 8.7
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.52%
- Percentile among all scored CVEs: 42
- Score date: 10/5/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution75 % - Primary impact
T1105Ingress Tool Transfercommand and control80 % - Secondary impact
T1543.001Launch Agentpersistence · privilege escalation75 %
UI:R (interacción usuario) + aplicación web (AV:N) = T1203. Impactos: instalación remota de plugins (T1105 descarga) y activación de plugins para persistencia (T1543.001 servicios).
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-276
References
- https://github.com/HKUDS/OpenHarness/commit/59017e09880fcf9a6f60456a84fb982900b2c0b2
- https://github.com/HKUDS/OpenHarness/pull/156
- https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
- https://www.vulncheck.com/advisories/hkuds-openharness-plugin-management-command-exposure
- https://github.com/HKUDS/OpenHarness/pull/156
Raw JSON (NVD)
Show
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