Information disclosure in OpenClaw - #VU125085
Published: April 7, 2026
Vulnerability identifier: #VU125085
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: OpenClaw
Affected software:
OpenClaw
OpenClaw
Detailed vulnerability description
The vulnerability allows a remote attacker to expose a PKCE verifier.
The vulnerability exists due to exposure of sensitive information in the macOS app beta onboarding OAuth flow when handling Anthropic OAuth sign-in. A remote attacker can obtain exposed OAuth state values together with OAuth authorization artifacts to expose a PKCE verifier.
The issue is limited to the macOS beta onboarding OAuth path and does not affect the core CLI or gateway onboarding paths.
Remediation
Install security update from vendor's website.