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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.5.26 | 2026.5.26 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.5.26 | 2026.5.26 | GHSA-gxg4-2rrr-jhc7 |
Advisories 1
- WID-SEC-2026-1738 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 16, 2026
References
- GitHub Security Advisory (GHSA-gxg4-2rrr-jhc7) vendor-advisory
- VulnCheck Advisory: OpenClaw < 2026.5.26 - Hostname Validation Bypass via Trailing-Dot Inconsistency third-party-advisory