OpenClaw has pre-auth webhook body parsing that can enable unauthenticated slow-request DoS
Impact
OpenClaw webhook handlers for BlueBubbles and Google Chat accepted and parsed request bodies before authentication and signature checks on vulnerable releases. This allowed unauthenticated clients to hold parser work open with slow/oversized request bodies and degrade availability (slow-request DoS).
Affected Packages / Versions
- Package:
openclaw(npm) - Affected releases:
<= 2026.3.1 - Latest published vulnerable version at triage time:
2026.3.1(npm) - Fixed release:
2026.3.2(released)
Fix Commit(s)
d3e8b17aa6432536806b4853edc7939d891d0f25
Mitigation
Upgrade to 2026.3.2 (or newer). The fix enforces auth-before-body for affected webhook paths, adds strict pre-auth body/time budgets, and introduces shared in-flight/request guardrails with regression coverage.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | openclaw | < 2026.3.2 | 2026.3.2 |
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-x4vp-4235-65hg
- https://nvd.nist.gov/vuln/detail/CVE-2026-32011
- https://github.com/openclaw/openclaw/commit/d3e8b17aa6432536806b4853edc7939d891d0f25
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-slow-request-denial-of-service-via-pre-auth-webhook-body-parsing
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-400, CWE-770- Platform
- npm
- Package
openclaw- Disclosed
- 03.03.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-x4vp-4235-65hg - CC BY 4.0
Vulnerability history: openclaw
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 589
- First → latest
- 02.2026 10.2026
- Without a fix
- 9
- Exploited in attacks
- 0
Severity breakdown
- Critical 20
- High 215
- Medium 300
- Low 54
Disclosures per year
- 2026: 589
-
OpenClaw has pre-auth webhook body parsing that can enable unauthenticated slow-request DoS this entry
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