Vulnerability Details CVE-2026-53859
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 12.5%
CVSS Severity
CVSS v3 Score 6.5