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CVE-2026-40502

Hkuds Openharness broken access control

8.8 HIGHPublic exploitEPSS 2.12%
  1. Published15 Apr 2026

Description

OpenHarness prior to commit dd1d235 contains a command injection vulnerability that allows remote gateway users with chat access to invoke sensitive administrative commands by exploiting insufficient distinction between local-only and remote-safe commands in the gateway handler. Attackers can execute administrative commands such as /permissions full_auto through remote chat sessions to change permission modes of a running OpenHarness instance without operator authorization.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Hkuds Openharness< 2026-04-13

Remediation

Fixed in
Hkuds Openharness≥ 2026-04-13

References

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Frequently asked

Is CVE-2026-40502 being actively exploited?

CVE-2026-40502 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 2.12%.

How severe is CVE-2026-40502?

CVE-2026-40502 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 2.12% probability of exploitation.

Which products are affected by CVE-2026-40502?

Affected products include Hkuds Openharness.

How do I fix CVE-2026-40502?

Upgrade affected software to a fixed version, for example Hkuds Openharness 2026-04-13 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40502 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.