Is CVE-2026-6819 actively exploited?

No active exploitation of CVE-2026-6819 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-6819 be exploited remotely?

Yes. CVE-2026-6819 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-6819?

CVE-2026-6819 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-6819

CWE-276Published: April 21, 2026· Updated: Apr 22, 2026

8.8

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:10.9th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-6819 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.