CVE-2026-6823 HIGH

CVE-2026-6823: HKUDS OpenHarness Insecure Default Remote Channel Allowlist

Vendor Hkuds
Product OpenHarness
Weakness CWE-276
Published April 21, 2026
Last update April 22, 2026

CVSS base score

8.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 21, 2026 CVE published
April 22, 2026 Record updated