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CVE-2026-3690— OpenClaw Canvas Authentication Bypass Vulnerability

Quick assessment

Affected
OpenClaw OpenClaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw存在安全漏洞，该漏洞源于身份验证功能实现不当，可能导致身份验证绕过。

AI Predicted 9.8 Difficulty: Easy EPSS 0.64% · P48

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-3690

Vulnerability Information
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Vulnerability Title
OpenClaw Canvas Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw Canvas Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-29311.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信任自主报告的IP地址
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaw 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw存在安全漏洞，该漏洞源于身份验证功能实现不当，可能导致身份验证绕过。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 2026.2.17 -

II. Public POCs for CVE-2026-3690

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III. Intelligence Information for CVE-2026-3690

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Vendor Advisories for CVE-2026-3690 (2)

Same Patch Batch · OpenClaw · 2026-04-11 · 3 CVEs total

CVE-2026-3691 OpenClaw Client PKCE Verifier Information Disclosure Vulnerability
CVE-2026-3689 OpenClaw Canvas Path Traversal Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-291

V. Comments for CVE-2026-3690

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