CVE-2026-7551: HKUDS OpenHarness RCE Flaw Exposes Sensitive Data
The National Vulnerability Database has identified a critical remote code execution vulnerability, CVE-2026-7551, within HKUDS OpenHarness. This flaw resides in the /bridge slash command, allowing authenticated remote attackers to execute arbitrary operating system commands. Attackers can leverage the /bridge spawn command, injecting malicious command text that is processed by the bridge session manager and executed via a shared shell subprocess. This grants them the ability to spawn shell sessions with the privileges of the OpenHarness process, leading to unauthorized access to local files, credentials, workspace state, and repository contents.
The National Vulnerability Database rates this vulnerability at CVSS score 8.8 (HIGH), citing its exploitable nature over the network (AV:N) with low complexity (AC:L) and requiring only low privileges (PR:L). The potential impact on confidentiality, integrity, and availability is High (C:H/I:H/A:H). While specific affected products are not detailed, any organization utilizing HKUDS OpenHarness should treat this as an immediate threat. The underlying weakness is categorized under CWE-78, Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’).
What This Means For You
- If your organization uses HKUDS OpenHarness, audit your configurations immediately. Focus on access controls for the /bridge command. Any user who can invoke the /bridge spawn command is a potential pivot point for attackers. Review logs for unusual command executions originating from the bridge session manager and verify the integrity of files and credentials accessible by the OpenHarness process user.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-7551: OpenHarness /bridge Command Injection
title: CVE-2026-7551: OpenHarness /bridge Command Injection
id: scw-2026-04-30-ai-1
status: experimental
level: critical
description: |
Detects the specific execution pattern of the /bridge command in OpenHarness used to spawn a shell session and execute arbitrary OS commands, as described in CVE-2026-7551. This rule looks for the 'spawn' keyword within the command line arguments of the bridge process, combined with the execution of 'cmd.exe', indicating a potential RCE attempt.
author: SCW Feed Engine (AI-generated)
date: 2026-04-30
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-7551/
tags:
- attack.execution
- attack.t1059.004
logsource:
category: process_creation
detection:
selection:
Image|startswith:
- '/opt/openharness/bin/bridge'
CommandLine|contains:
- 'spawn'
CommandLine|contains:
- 'cmd.exe'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-7551 | RCE | HKUDS OpenHarness |
| CVE-2026-7551 | RCE | Vulnerable component: /bridge slash command |
| CVE-2026-7551 | RCE | Attack vector: /bridge spawn command with attacker-controlled command text |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 01, 2026 at 01:16 UTC |
This content was AI-rewritten and enriched by Shimi's Cyber World based on the original source. All intellectual property rights remain with the original author.
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