PT-2026-30235 · Openclaw · Openclaw

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

Positive Technologies (AI Summary)

CVSS v4.0

7.0

High

Base vector

AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.4.2

Description The application reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. An attacker capturing the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption.

Recommendations Update to version 2026.4.2 or later.

Fix

Insufficient Verification of Data Authenticity

Use of Insufficiently Random Values

Weakness Enumeration

CWE-345

CWE-330

Related Identifiers

CVE-2026-34511

GHSA-9JPJ-G8VV-J5MF

GHSA-CH86-PXR9-J9H9

Affected Products

Openclaw

References · 7

• https://github.com/openclaw/openclaw/commit/a26f4d0f3ef0757db6c6c40277cc06a5de76c52f · Patch
• https://github.com/openclaw/openclaw/security/advisories/GHSA-9jpj-g8vv-j5mf · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-ch86-pxr9-j9h9 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34511 · Security Note
• https://osv.dev/vulnerability/GHSA-9jpj-g8vv-j5mf · Vendor Advisory
• https://github.com/openclaw/openclaw · Note
• https://vulncheck.com/advisories/openclaw-pkce-verifier-exposure-via-oauth-state-parameter · Note