CVE-2026-34511
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Apr 03, 2026
Vendor
unknown
Description
OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption.