CVE-2026-35626 MEDIUM

CVE-2026-35626: OpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook

Vendor Openclaw
Product OpenClaw
Weakness CWE-405
Published April 9, 2026
Last update April 14, 2026
View on NVD All CVEs

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenClaw before 2026.3.22 contains an unauthenticated resource exhaustion vulnerability in voice call webhook handling that buffers request bodies before provider signature checks. Attackers can send large or malicious webhook requests to exhaust server resources without authentication by bypassing signature validation.

Key dates

02Disclosure timeline

April 9, 2026 CVE published
April 14, 2026 Record updated