How severe is CVE-2026-7551?

CVE-2026-7551 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7551 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7551?

CVE-2026-7551 affects Hkuds Openharness. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7551?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-7551 have an EU (EUVD) identifier?

Yes. CVE-2026-7551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26451.

When was CVE-2026-7551 published?

CVE-2026-7551 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-7551

CVE-2026-7551 is a high-severity vulnerability in Hkuds Openharness with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26451
Weakness: CWE-78
Affected product: Hkuds Openharness
Published: 2026-04-30
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-7551?: 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.
How severe is CVE-2026-7551?: CVE-2026-7551 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7551 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7551?: CVE-2026-7551 affects Hkuds Openharness. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7551?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-7551 have an EU (EUVD) identifier?: Yes. CVE-2026-7551 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26451.
When was CVE-2026-7551 published?: CVE-2026-7551 was published on 2026-04-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hkuds:openharness:*:*:*:*:*:*:*:*

More vulnerabilities in Hkuds Openharness

CVE-2026-6819 — High (CVSS 8.8): HKUDS OpenHarness prior to PR #156 remediation exposes plugin lifecycle commands including /plugin install, /plugin…
CVE-2026-40502 — High (CVSS 8.8): OpenHarness prior to commit dd1d235 contains a command injection vulnerability that allows remote gateway users with…
CVE-2026-40516 — High (CVSS 8.3): OpenHarness before commit bd4df81 contains a server-side request forgery vulnerability in the web_fetch and web_search…
CVE-2026-6823 — High (CVSS 8.2): HKUDS OpenHarness prior to PR #147 remediation contains an insecure default configuration vulnerability where remote…
CVE-2026-40515 — High (CVSS 7.5): OpenHarness before commit bd4df81 contains a permission bypass vulnerability that allows attackers to read sensitive…
CVE-2026-40503 — Medium (CVSS 6.5): OpenHarness prior to commit dd1d235 contains a path traversal vulnerability that allows remote gateway users with chat…

All CVEs affecting Hkuds Openharness →

Other CWE-78 (OS Command Injection) vulnerabilities

CVE-2026-56004 — Critical (CVSS 10.0): A shellcode injection in the mercurial handler of the obs tar_scm source service before version 0.12.4 could be used by…
CVE-2026-56415 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability within the debug.pl script that is…
CVE-2026-56413 — Critical (CVSS 10.0): Storage Concentrator (SC & SCVM) contains a command injection vulnerability in the ms_service.pl service, which listens…
CVE-2026-49869 — Critical (CVSS 10.0): Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21, AuthenticationFilter in…
CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2026-10520 — Critical (CVSS 10.0): An OS Command Injection vulnerability in Ivanti Sentry before the R10.5.2, R10.6.2 and R10.7.1 versions allows a…

Browse all CWE-78 (OS Command Injection) vulnerabilities →