{"id":"CVE-2026-35646","aliases":["GHSA-mf5g-6r6f-ghhm"],"url":"https://o3.security/vulnerability/CVE-2026-35646","summary":"OpenClaw < 2026.3.25 - Pre-Authentication Rate-Limit Bypass in Webhook Token Validation","details":"OpenClaw before 2026.3.25 contains a pre-authentication rate-limit bypass vulnerability in webhook token validation that allows attackers to brute-force weak webhook secrets. The vulnerability exists because invalid webhook tokens are rejected without throttling repeated authentication attempts, enabling attackers to guess weak tokens through rapid successive requests.","published":"2026-04-09T21:27:11.563Z","modified":"2026-08-12T03:51:41.838744753Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.3.28"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/0b4d07337467f4d40a0cc1ced83d45ceaec0863c","label":"openclaw/openclaw@0b4d073"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35646.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-mf5g-6r6f-ghhm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35646"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-pre-authentication-rate-limit-bypass-in-webhook-token-validation"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/0b4d07337467f4d40a0cc1ced83d45ceaec0863c"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:41.838744753Z"}}