OpenClaw versions prior to 2026.3.2 contain a denial of service vulnerability in webhook handlers for BlueBubbles and Google Chat that parse request bodies before performing authentication and signature validation. Unauthenticated attackers can exploit this by sending slow or oversized request bodies to exhaust parser resources and degrade service availability.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-x4vp-4235-65hg OpenClaw has pre-auth webhook body parsing that can enable unauthenticated slow-request DoS
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 19 Mar 2026 22:15:00 +0000

Type Values Removed Values Added
Description OpenClaw versions prior to 2026.3.2 contain a denial of service vulnerability in webhook handlers for BlueBubbles and Google Chat that parse request bodies before performing authentication and signature validation. Unauthenticated attackers can exploit this by sending slow or oversized request bodies to exhaust parser resources and degrade service availability.
Title OpenClaw < 2026.3.2 - Slow-Request Denial of Service via Pre-Auth Webhook Body Parsing
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-770
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-19T22:06:50.512Z

Reserved: 2026-03-10T19:48:38.210Z

Link: CVE-2026-32011

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-03-19T22:16:34.197

Modified: 2026-03-19T22:16:34.197

Link: CVE-2026-32011

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses