PT-2026-34183 · Hkuds+1 · Openharness

Tjb-Tech · CVE-2026-6823 · Published 2026-04-21 · Updated 2026-04-26

Positive Technologies (AI Summary)

CVSS v4.0

8.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenHarness versions prior to PR #147

Description An insecure default configuration exists where remote channels inherit allow from = ["*"], which allows arbitrary remote senders to pass admission checks. Attackers capable of reaching the configured channel can bypass access controls to reach host-backed agent runtimes. This may result in unauthorized file disclosure and read access via default-enabled read-only tools.

Recommendations Apply the remediation provided in PR #147.

Exploit

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2026-6823

Affected Products

Openharness

References · 8

• 🔥 https://github.com/HKUDS/OpenHarness/pull/147 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6823.json · Exploit
• https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-6823 · Security Note
• https://osv.dev/vulnerability/CVE-2026-6823 · Vendor Advisory
• https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7 · Note
• https://twitter.com/CVEnew/status/2048481118861595100 · Twitter Post
• https://vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist · Note