CVE-2026-35665

MediumCVSS 5.3/10Last modified Jun 17, 2026

Description

OpenClaw before 2026.3.24 contains an incomplete fix for CVE-2026-32011 where the Feishu webhook handler accepts request bodies with permissive limits of 1MB and 30-second timeout before signature verification. An unauthenticated attacker can exhaust server connection resources by sending concurrent slow HTTP POST requests to the Feishu webhook endpoint, blocking legitimate webhook deliveries.

Metrics

CVSS 3.1 5.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-405

Affected software

No affected versions have been published.

Timeline

Published: Apr 10, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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