CVE-2026-6819

HIGH EPSS 20.9%
Published Apr 21, 20262mo ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
High
Find Similar
Published Apr 21, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
20.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-276

Affected Products 1

VendorProductVersionRange
hkudsopenharness* <0.1.7

References 4

  • github.com https://github.com/HKUDS/OpenHarness/commit/59017e09880fcf9a6f60456a84fb982900b2c0b2
    Patch
  • github.com https://github.com/HKUDS/OpenHarness/pull/156
    ExploitIssue TrackingPatch
  • github.com https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7
    Release Notes
  • vulncheck.com https://www.vulncheck.com/advisories/hkuds-openharness-plugin-management-command-exposure
    Third Party Advisory

Remediation

  • github.com https://github.com/HKUDS/OpenHarness/commit/59017e09880fcf9a6f60456a84fb982900b2c0b2
    Patch
  • github.com https://github.com/HKUDS/OpenHarness/pull/156
    ExploitIssue TrackingPatch