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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- 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
- EPSS probability
- 0.21%
- CWE
- CWE-1023, CWE-918
- Published
- 2026-06-16
- Last modified
- 2026-06-16
Affected products
- OpenClaw OpenClaw
- OpenClaw OpenClaw
Weakness type
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