Medium severity5.3NVD Advisory· Published Apr 11, 2026· Updated Apr 27, 2026
CVE-2026-3691
CVE-2026-3691
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/openclaw/openclaw/security/advisories/GHSA-6g25-pc82-vfwpnvdThird Party Advisory
- www.zerodayinitiative.com/advisories/ZDI-26-229/nvdThird Party Advisory
News mentions
1- ZDI-26-229: OpenClaw Client PKCE Verifier Information Disclosure VulnerabilityZero Day Initiative · Mar 30, 2026