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CVE-2026-28446

Openclaw authentication bypass

9.4 CRITICALPublic exploitEPSS 1.02%
  1. Published5 Mar 2026

Description

OpenClaw versions prior to 2026.2.1 with the voice-call extension installed and enabled contain an authentication bypass vulnerability in inbound allowlist policy validation that accepts empty caller IDs and uses suffix-based matching instead of strict equality. Remote attackers can bypass inbound access controls by placing calls with missing caller IDs or numbers ending with allowlisted digits to reach the voice-call agent and execute tools.

CVSS 3.1 breakdown

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

Affected products

Openclaw< 2026.2.2

Remediation

Fixed in
Openclaw≥ 2026.2.2

References

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Frequently asked

Is CVE-2026-28446 being actively exploited?

CVE-2026-28446 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.02%.

How severe is CVE-2026-28446?

CVE-2026-28446 has a CVSS 3.1 base score of 9.4, rated critical. EPSS estimates a 1.02% probability of exploitation.

Which products are affected by CVE-2026-28446?

Affected products include Openclaw.

How do I fix CVE-2026-28446?

Upgrade affected software to a fixed version, for example Openclaw 2026.2.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-28446 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.