Is CVE-2026-34511 actively exploited?

No active exploitation of CVE-2026-34511 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34511 be exploited remotely?

Yes. CVE-2026-34511 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-34511?

CVE-2026-34511 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-34511

CWE-330Published: April 3, 2026· Updated: Apr 7, 2026

5.3

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.3th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34511 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.3.