OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-q447-rj3r-2cgh | OpenClaw affected by denial of service via unbounded webhook request body buffering |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 05 Mar 2026 22:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation. | |
| Title | OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering | |
| 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
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-03-05T22:28:17.627Z
Reserved: 2026-02-27T19:20:17.867Z
Link: CVE-2026-28478
No data.
Status : Received
Published: 2026-03-05T22:16:22.210
Modified: 2026-03-05T22:16:22.210
Link: CVE-2026-28478
No data.
OpenCVE Enrichment
No data.
Weaknesses
Github GHSA