VULNERABILITY INTELLIGENCE

CVE-2026-53859

CVSS score6.5 MEDIUM
EPSS probability0.21%
CISA KEVNot currently listed
Published2026-06-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Description

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-918

Primary references