PT-2026-33856 · Hkuds · Openharness

Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6729

NVD

CVSS v3.1

6.3

Medium

AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2026-6729

Affected Products

Openharness

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-6729 · Security Note
• https://github.com/HKUDS/OpenHarness/pull/159 · Patch
• https://github.com/HKUDS/OpenHarness/commit/3186851c479ee714a9bb9aa6cd77017db7e589e2 · Patch
• https://vulncheck.com/advisories/hkuds-openharness-session-key-collision-privilege-escalation · Note