CVE-2026-28446
Authentication Bypass in OpenClaw Voice-Call Extension Enables Remote Access
Publication date: 2026-03-05
Last updated on: 2026-03-11
Assigner: VulnCheck
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| openclaw | openclaw | to 2026.2.2 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-303 | The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in OpenClaw versions prior to 2026.2.1 when the voice-call extension is installed and enabled. It is an authentication bypass issue in the inbound allowlist policy validation. Specifically, the system accepts calls with empty caller IDs and uses suffix-based matching instead of strict equality to validate caller IDs. This allows remote attackers to bypass inbound access controls by placing calls with missing caller IDs or numbers that end with digits on the allowlist, thereby gaining unauthorized access to the voice-call agent and the ability to execute tools.
How can this vulnerability impact me? :
The vulnerability can have severe impacts as it allows remote attackers to bypass inbound access controls and gain unauthorized access to the voice-call agent. This can lead to unauthorized execution of tools, potentially compromising the system's integrity, confidentiality, and availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know