{"id":"CVE-2026-35646","summary":"OpenClaw \u003c 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.","aliases":["GHSA-mf5g-6r6f-ghhm"],"modified":"2026-07-15T01:49:10.667192988Z","published":"2026-04-09T21:27:11.563Z","database_specific":{"cwe_ids":["CWE-307"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35646.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"2026.3.25"}]},{"extracted_events":[{"fixed":"2026.3.25"}],"source":"CPE_FIELD"},{"extracted_events":[{"fixed":"2026.3.25"}],"source":"DESCRIPTION"}],"cna_assigner":"VulnCheck"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openclaw/openclaw","events":[{"introduced":"0"},{"fixed":"0b4d07337467f4d40a0cc1ced83d45ceaec0863c"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v2026.3.24","v2026.3.24-beta.2","v2026.3.24-beta.1","v2026.3.23-2","v2026.3.23","v2026.3.23-beta.1","v2026.3.22","v2026.3.22-beta.1","v2026.3.13-1","v2026.3.13","v2026.3.12","v2026.3.11","v2026.3.11-beta.1","v2026.3.8","v2026.3.8-beta.1","v2026.3.7","v2026.3.7-beta.1","v2026.3.2-beta.1","v2026.3.2","v2026.3.1","v2026.2.26","v2026.2.26-beta.1","v2026.2.25","v2026.2.25-beta.1","v2026.2.24","v2026.2.24-beta.1","v2026.2.23","v2026.2.23-beta.1","v2026.2.22","v2026.2.22-beta.1","v2026.2.21","v2026.2.21-beta.1","v2026.2.19-beta.1","v2026.2.19","v2026.2.17","v2026.2.15-beta.1","v2026.2.14","v2026.2.13","v2026.2.12","v2026.2.9","v2026.2.6-3","v2026.2.6-2","v2026.2.6-1","v2026.2.6","v2026.2.3","v2026.2.2","v2026.2.1","v2026.1.30","v2026.1.29","v2026.1.24-1","v2026.1.24","v2026.1.23","v2026.1.22","v2026.1.21","v2026.1.20","v2026.1.16-2","v2026.1.15","v2026.1.14-1","v2026.1.13","v2026.1.12-2","v2026.1.12","v2026.1.11-3","v2026.1.11-2","v2026.1.11-1","v2026.1.11","v2026.1.10","v2026.1.9","v2026.1.8","v2026.1.5-3","v2026.1.5-2","v2026.1.5-1","v2026.1.5","v2.0.0-beta5","v2.0.0-beta4","v2.0.0-beta3","v2.0.0-beta2","v2.0.0-beta1","v1.3.0","v1.2.2","v1.2.1","v1.2.0","v1.1.0","v1.0.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-35646.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}