CVE-2026-35640

HighCVSS 7.5/10Last modified Nov 11, 2026

Description

OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-696

Affected software

Vendor	Product	Versions
OpenClaw	OpenClaw	< 2026.3.25

References

Timeline

Published: Apr 9, 2026
Last modified: Nov 11, 2026
NVD status: Analyzed

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