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CVE-2026-3691

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CVE-2026-3691

Published: Apr 11, 2026

Modified: Apr 13, 2026

PUBLISHED

CVSS v3.0

5.3

MEDIUM

Description

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.

VendorProductVersions

OpenClaw

OpenClaw

affected
2026.2.21

Weaknesses (CWE)

CWE-200

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

ZDI-26-229
x_research-advisory
vendor-provided URL
vendor-advisory

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