OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.
Metrics
Affected Vendors & Products
References
History
Fri, 10 Apr 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 09 Apr 2026 21:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection. | |
| Title | OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing | |
| First Time appeared |
Openclaw
Openclaw openclaw |
|
| Weaknesses | CWE-696 | |
| CPEs | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
Openclaw
Openclaw openclaw |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-04-10T12:29:52.811Z
Reserved: 2026-04-04T12:30:33.464Z
Link: CVE-2026-35640
Updated: 2026-04-10T12:29:48.309Z
Status : Received
Published: 2026-04-09T22:16:33.507
Modified: 2026-04-09T22:16:33.507
Link: CVE-2026-35640
No data.
OpenCVE Enrichment
Updated: 2026-04-10T09:28:22Z