{"id":"CVE-2026-53859","summary":"OpenClaw \u003c 2026.5.26 - Hostname Validation Bypass via Trailing-Dot Inconsistency","details":"OpenClaw before 2026.5.26 contains a hostname validation vulnerability allowing attackers to bypass blocklist comparisons using trailing-dot notation in model or workspace-derived URLs. Attackers can exploit inconsistent hostname checks to reach destinations that operators intended to block through hostname policies.","aliases":["GHSA-gxg4-2rrr-jhc7"],"modified":"2026-07-15T01:49:11.045412266Z","published":"2026-06-16T18:05:06.511Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53859.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-1023","CWE-918"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53859.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-gxg4-2rrr-jhc7"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53859"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-hostname-validation-bypass-via-trailing-dot-inconsistency"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openclaw/openclaw","events":[{"introduced":"0"},{"fixed":"10ad3aa16068baa84a1bd9ac4f7d42ae725cedb7"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2026.5.26"}],"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*"}}],"versions":["v2026.4.19-beta.2","v2026.4.19-beta.1","v2026.4.15","v2026.4.15-beta.2","v2026.4.15-beta.1","v2026.4.14","v2026.4.14-beta.1","v2026.4.12","v2026.4.12-beta.1","v2026.4.11","v2026.4.11-beta.1","v2026.4.10","v2026.4.9","v2026.4.9-beta.1","v2026.4.8","v2026.4.7-1","v2026.4.7","v2026.4.5","v2026.4.2","v2026.4.1","v2026.4.1-beta.1","v2026.3.31","v2026.3.31-beta.1","v2026.3.28","v2026.3.28-beta.1","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-2026-53859.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}