CVE-2026-53859 — OpenClaw < 2026.5.26 - Hostname Validation Bypass via Trailing-Dot Inconsistency
OpenClaw before 2026.5.26 contains a hostname validation vulnerability allowing attackers to bypass blocklist comparisons using trailing-dot notation in model or workspace-deriv…
Published: 2026-06-16 · CVSS: 6.0 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7