OpenClaw < 2026.3.2 - Slow-Request Denial of Service via Pre-Auth Webhook Body Parsing
Published Mar 19, 2026
8.7
HIGHCVSS 4.0
EPSS 0.73%
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.
Affected products
-
- Version 0StatusaffectedConstraints<2026.3.2
- Version 2026.3.2StatusunaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
openclaw
npm
Introduced 0 Fixed 2026.3.2
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | openclaw | 0 | 2026.3.2 |
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
2 other sources (CVE.org, NVD) ▾
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
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Mar 20, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.73% (0.00728) | 52.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00418) | 33.17th | v5 (v2026.06.15) |
| Mar 20, 2026 | 0.04% (0.00040) | 11.90th | v4 (v2025.03.14) |
References (5)
- https://github.com/advisories/GHSA-x4vp-4235-65hg Advisory
- https://github.com/openclaw/openclaw/commit/d3e8b17aa6432536806b4853edc7939d891d0f25 patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-x4vp-4235-65hg vendor-advisoryMitigationVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-32011
- https://www.vulncheck.com/advisories/openclaw-slow-request-denial-of-service-via-pre-auth-webhook-body-parsing third-party-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://github.com/advisories/GHSA-x4vp-4235-65hg | Advisory | |
| https://github.com/openclaw/openclaw/commit/d3e8b17aa6432536806b4853edc7939d891d0f25 | patch | |
| https://github.com/openclaw/openclaw/security/advisories/GHSA-x4vp-4235-65hg | vendor-advisoryMitigationVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-32011 | ||
| https://www.vulncheck.com/advisories/openclaw-slow-request-denial-of-service-via-pre-auth-webhook-body-parsing | third-party-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.