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CVE-2026-6729— HKUDS OpenHarness Session Key Collision Privilege Escalation

CVSS 6.3 · Medium EPSS 0.04% · P11
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I. Basic Information for CVE-2026-6729

Vulnerability Information
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Vulnerability Title
HKUDS OpenHarness Session Key Collision Privilege Escalation
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
OpenHarness 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenHarness是Data Intelligence Lab@HKU开源的一个轻量级智能体开发与运行框架。 OpenHarness存在安全漏洞，该漏洞源于会话密钥派生问题，可能导致经过身份验证的参与者通过利用缺乏发送方身份验证的共享ohmo会话密钥来劫持其他用户的会话。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
HKUDSOpenHarness 0 ~ PR #159 -

II. Public POCs for CVE-2026-6729

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III. Intelligence Information for CVE-2026-6729

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IV. Related Vulnerabilities

Same product: OpenHarness
Same vendor: HKUDS
Same weakness: CWE-287

V. Comments for CVE-2026-6729

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