---
id: CVE-2026-6823
title: HKUDS OpenHarness Insecure Default Remote Channel Allowlist
summary: >-
  HKUDS OpenHarness prior to PR #147 remediation contains an insecure default
  configuration vulnerability where remote channels inherit allow_from = ["*"]
  permitting arbitrary remote senders to pass admission checks. Attackers who
  can reac…
severity: high
cvss: 8.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-276
vendor: HKUDS
product: OpenHarness
affected:
  - 'OpenHarness < PR #147'
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-04-22T13:49:25.776753Z'
exploitAvailable: true
published: '2026-04-21'
updated: '2026-11-08'
sourceUpdated: '2026-11-08T14:08:13.099Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-6823'
references:
  - url: 'https://github.com/HKUDS/OpenHarness/pull/147'
    label: Pull Request
  - url: >-
      https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d
    label: Patch Commit
  - url: 'https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7'
    label: OpenHarness 0.1.7 Release Notes
  - url: >-
      https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist
tags:
  - cve.org
  - exploit-available
epss: 0.00341
epssPercentile: 0.27739
ingestedAt: '2026-11-08T14:51:22.264Z'
---

## Overview

HKUDS OpenHarness prior to PR #147 remediation contains an insecure default configuration vulnerability where remote channels inherit allow_from = ["*"] permitting arbitrary remote senders to pass admission checks. Attackers who can reach the configured channel can bypass access controls and reach host-backed agent runtimes, potentially leading to unauthorized file disclosure and read access through default-enabled read-only tools.

## Affected

- `OpenHarness < PR #147`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.