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CVE-2026-3691

MEDIUM CVSS 3.0: 5.3 EPSS 0.07%
Updated Apr 11, 2026
OpenClaw
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-200 (Information Exposure)
Vendor OpenClaw
Public PoC No

OpenClaw Client PKCE Verifier Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose stored credentials on affected installations of OpenClaw. User interaction is required to exploit this vulnerability in that the target must initiate an OAuth authorization flow.

The specific flaw exists within the implementation of OAuth authorization. The issue results from the exposure of sensitive data in the authorization URL query string. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise.

Was ZDI-CAN-29381.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.0

Weakness Type (CWE)