CVE-2026-53859

MEDIUM SEVERITY

CVSS Score & Metrics

Base Score

6.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N                                    

Vulnerability 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.

Vulnerability Details

Published Date

June 16, 2026

Last Modified

June 16, 2026

CWE ID

CWE-918

Source

NVD

Vendor

OpenClaw

Product

OpenClaw

External References

https://github.com/openclaw/openclaw/security/advisories/GHSA-gxg4-2rrr-jhc7
https://www.vulncheck.com/advisories/openclaw-hostname-validation-bypass-via-trailing-dot-inconsistency

CVE-2026-53859

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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