CVE-2026-32011

HIGH

OpenClaw < 2026.3.2 - Slow-Request Denial of Service via Pre-Auth Webhook Body Parsing

Title source: cna
STIX 2.1

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.

References (3)

Core 3
Core References
Third Party Advisory third-party-advisory
GitHub Security Advisory (GHSA-x4vp-4235-65hg)
https://github.com/openclaw/openclaw/security/advisories/GHSA-x4vp-4235-65hg
Third Party Advisory third-party-advisory
VulnCheck Advisory: OpenClaw < 2026.3.2 - Slow-Request Denial of Service via Pre-Auth Webhook Body Parsing
https://www.vulncheck.com/advisories/openclaw-slow-request-denial-of-service-via-pre-auth-webhook-body-parsing

Scores

CVSS v3 7.5
EPSS 0.0042
EPSS Percentile 33.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (3)
npm/openclaw 0 - 2026.3.2npm
OpenClaw/OpenClaw < 2026.3.2
OpenClaw/OpenClaw 2026.3.2
Published Mar 19, 2026
Tracked Since Mar 20, 2026