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

Status: published. Published: 2026-04-30. Updated: 2026-11-08.

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.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/HKUDS/OpenHarness/pull/208
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/HKUDS/OpenHarness/commit/438e37309778e19060dfe7b172eb142e543c4cd6

## Affected products and versions

- HKUDS / OpenHarness: ≥ 0; < 438e373 (affected, git). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 8.7 (high); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 8.8 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.65% as of 2026-11-08; percentile 51.38%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-78

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/HKUDS/OpenHarness/pull/208 (CNA: VulnCheck; issue-tracking, patch)

- https://github.com/HKUDS/OpenHarness/commit/438e37309778e19060dfe7b172eb142e543c4cd6 (CNA: VulnCheck; patch)

- https://www.vulncheck.com/advisories/hkuds-openharness-remote-command-execution-via-bridge-slash-command (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-7551; retrieved 2026-11-08; source updated 2026-11-08

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-7551; retrieved 2026-11-08; source updated Not reported

Revision: b84593743c23d6a13e61ffc2dc26c0c348b3fd47b1dc87333ec98edc50df8749

Canonical: https://y2.dev/cve/CVE-2026-7551

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