Description (CNA)
OpenClaw (npm package 'openclaw') versions >= 2026.6.6 and < 2026.8.1 apply the SMS webhook invalid-request rate limit before Twilio signature verification and identify clients only by the raw proxy socket address. In deployments where the SMS/Twilio webhook sits behind a trusted reverse proxy or tunnel so that multiple external clients share one socket address, an unauthenticated remote sender can exhaust the shared pre-authentication rate-limit budget with invalid requests, causing subsequent correctly signed Twilio callbacks to receive HTTP 429 responses. The result is temporary inbound SMS loss while the shared window remains exhausted; the attacker cannot forge a callback or access message data. Fixed in 2026.8.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenClaw / OpenClaw | affected 2026.6.6 before 2026.8.1; unaffected 2026.8.1 |
CWE
CWE-400
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-xw48-j584-r73h
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-sms-webhook-rate-limit-bypass
ADP enrichment
No English description supplied.
No references supplied.