HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to hijack other users' sessions by exploiting a shared ohmo session key that lacks sender identity verification. Attackers can reuse another user's conversation state and replace or interrupt their active tasks by colliding into the same session boundary through the shared chat or thread scope.

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History

Fri, 24 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:hkuds:openharness:*:*:*:*:*:*:*:*

Wed, 22 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Hkuds
Hkuds openharness
Vendors & Products Hkuds
Hkuds openharness

Wed, 22 Apr 2026 00:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 20 Apr 2026 22:15:00 +0000

Type Values Removed Values Added
Description HKUDS OpenHarness prior to PR #159 remediation contains a session key derivation vulnerability that allows authenticated participants in shared chats or threads to hijack other users' sessions by exploiting a shared ohmo session key that lacks sender identity verification. Attackers can reuse another user's conversation state and replace or interrupt their active tasks by colliding into the same session boundary through the shared chat or thread scope.
Title HKUDS OpenHarness Session Key Collision Privilege Escalation
Weaknesses CWE-287
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-04-21T17:39:32.967Z

Reserved: 2026-04-20T21:48:49.949Z

Link: CVE-2026-6729

cve-icon Vulnrichment

Updated: 2026-04-21T17:39:29.067Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-20T22:16:23.800

Modified: 2026-04-24T19:14:28.340

Link: CVE-2026-6729

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T11:47:10Z

Weaknesses