CVE-2026-6819: HKUDS OpenHarness prior to PR #156 remediation exposes plugin lifecycle commands including /plugin install, /p

Q: How do I fix CVE-2026-6819?

openharness: upgrade to 0.1.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-6819 being exploited?

CVE-2026-6819 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-6819 affect?

CVE-2026-6819 affects openharness. Severity is high (CVSS 8.8). 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 lay

Q: How urgent is CVE-2026-6819?

Priority 41/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-6819 is a high-severity flaw (CVSS 8.8) affecting openharness. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-276
Published	2026-04-21
Last modified	2026-10-26

Publisher (CNA): VulnCheck · Vendor: hkuds

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-21 20:17 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

hkuds openharness UPGRADE

Affected: < 0.1.7

Fixed in: 0.1.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy openharness || rpm -q openharness || openharness --version

2. UPGRADE to 0.1.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openharness

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openharness

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-6819?

openharness: upgrade to 0.1.7. Exact commands for each OS are on this page.

Is CVE-2026-6819 being exploited?

CVE-2026-6819 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-6819 affect?

CVE-2026-6819 affects openharness. Severity is high (CVSS 8.8). 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 lay

How urgent is CVE-2026-6819?

Priority 41/100. High severity; Public exploit reference

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References

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