CVE-2026-34511 (GCVE-0-2026-34511)
Vulnerability from cvelistv5
Published
2026-04-03 20:45
Modified
2026-04-06 16:57
Severity ?
6.0 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CWE
  • CWE-330 - Use of Insufficiently Random Values
Summary
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.
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Version: 0   ≤
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