PT-2026-30235 · Openclaw · Openclaw

Raax · Published 2026-04-03 · Updated 2026-04-03 · CVE-2026-34511

NVD

CVSS v3.1

5.3

Medium

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

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.

Fix

Use of Insufficiently Random Values

Weakness Enumeration

CWE-330

Related Identifiers

CVE-2026-34511

Affected Products

Openclaw

References · 4

• https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-34511 · Security Note
• https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf · Vendor Advisory
• https://vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter · Note