{"id":"CVE-2026-100571","summary":"OpenClaw before 2026.8.1 SMS Webhook Rate Limit Bypass","details":"OpenClaw (npm package 'openclaw') versions \u003e= 2026.6.6 and \u003c 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.","aliases":["GHSA-xw48-j584-r73h"],"modified":"2026-09-29T03:31:03.015517924Z","published":"2026-09-26T02:19:00.237Z","database_specific":{"cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100571.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100571.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-xw48-j584-r73h"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100571"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-sms-webhook-rate-limit-bypass"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openclaw/openclaw","events":[{"introduced":"8c802aa683510c7f7503597b54c3021733245e59"},{"fixed":"ea806575e6450e4d1efdfc72c19f04be982a1b9b"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"2026.6.6"},{"fixed":"2026.8.1"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100571.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}