CVE-2026-100567
OpenClaw before 2026.8.1 DNS Rebinding via CDP Hostname
- State
- Published
- Severity
- 8.9 High
- Published
- Sep 26, 2026
- Updated
- Sep 28, 2026
- Reserved
- Sep 26, 2026
Description
OpenClaw is an agent gateway distributed as the npm package 'openclaw'. In versions >= 2026.4.5 and < 2026.8.1, the Gateway validated a single DNS resolution result for a configured remote Chrome DevTools Protocol (CDP) hostname, but the raw WebSocket and Playwright transports performed a later, independent DNS resolution, discarding the DNS pinning enforced at validation time. An attacker who controls an approved CDP hostname or its DNS answers can exploit this check-then-use gap via DNS rebinding to make the Gateway connect to a loopback, private, link-local, cloud metadata, or other SSRF-policy-denied address. The impact depends on the remote CDP configuration, DNS timing, and the services reachable from the Gateway host. The issue is fixed in 2026.8.1; as a mitigation, disable hostname-based remote CDP endpoints or restrict them to trusted, stable infrastructure.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.9 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L | VulnCheck |
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
OpenClawOpenClaw |
|
References
- GitHub Security Advisory (GHSA-p3h6-v2h4-36q2)vendor-advisory
- VulnCheck Advisory: OpenClaw before 2026.8.1 DNS Rebinding via CDP Hostnamethird-party-advisory
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