What’s Vulnerable › Vulnerabilities

CVE-2026-7551: HKUDS OpenHarness Remote Command Execution via /bridge Slash Command

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-30 · updated 2026-10-26
• Weakness: CWE-78

Description

HKUDS OpenHarness contains a remote code execution vulnerability in the /bridge slash command that allows remote senders accepted by configuration to execute arbitrary operating system commands. Attackers can invoke the /bridge spawn command with attacker-controlled command text that is forwarded to the bridge session manager and executed through the shared shell subprocess helper, allowing them to spawn shell sessions as the OpenHarness process user and access local files, credentials, workspace state, and repository contents.

Affected products

• HKUDS OpenHarness: before 2026-04-27 — fixed in 2026-04-27

How to fix

Upgrade to a fixed version: HKUDS OpenHarness 2026-04-27. Check the vendor advisory for mitigations.

References

• https://github.com/HKUDS/OpenHarness/commit/438e37309778e19060dfe7b172eb142e543c4cd6
• https://github.com/HKUDS/OpenHarness/pull/208
• https://www.vulncheck.com/advisories/hkuds-openharness-remote-command-execution-via-bridge-slash-command

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