CVE-2026-34511

MEDIUM

5.3

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie4/3/2026

Derniere modification4/3/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-330

References

https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f(disclosure@vulncheck.com)

https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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