CVE-2026-34511

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f	Patch
https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf	Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2026-04-03 21:17

Updated : 2026-07-24 22:10

NVD link : CVE-2026-34511

Mitre link : CVE-2026-34511

CVE.ORG link : CVE-2026-34511

JSON object : View

Products Affected

openclaw

openclaw

CWE

CWE-330

Use of Insufficiently Random Values

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