CVE-2026-53859
6
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenClaw | OpenClaw | 0 < 2026.5.26 | affected |
| OpenClaw | OpenClaw | 2026.5.26 | unaffected |
Weaknesses
- CWE-1023: Incomplete Comparison with Missing Factors
- CWE-918: Server-Side Request Forgery (SSRF)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
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
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