CVE Catalog
CVE-2026-34511
MediumCVSS 5.3Exploitation Probability (EPSS)
Low risk0.24%
15th percentile - higher than 15% of all known CVEs
Summary
OpenClaw before version 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it in the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection.
Risk Assessment
An attacker can intercept OAuth tokens, gaining unauthorized access to user accounts.
Recommendation
Update OpenClaw to version 2026.4.2 or later.
Original NVD description (English source)
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.