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.
Published: 2026-03-19
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch to 2026.3.2 or newer
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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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
History

Fri, 20 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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'}


Subscriptions

Openclaw Openclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-03-20T15:04:20.869Z

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

Link: CVE-2026-32011

cve-icon Vulnrichment

Updated: 2026-03-20T15:04:07.891Z

cve-icon NVD

Status : Analyzed

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

Modified: 2026-03-23T18:29:20.040

Link: CVE-2026-32011

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-20T11:05:33Z

Weaknesses