CVE-2026-100567 OpenClaw before 2026.8.1 DNS Rebinding via CDP Hostname
Attacker exploits DNS rebinding in OpenClaw to bypass SSRF protections and access internal services via remote CDP hostname validation flaws.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-100567?
CVE-2026-100567 is a high-severity server-side request forgery vulnerability in OpenClaw, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-100567?
How do I fix CVE-2026-100567?
Upgrade to a fixed version.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-100567 being exploited?
There is no known exploitation of CVE-2026-100567 in the wild and no public exploit code.
Sources
Also known as GHSA-p3h6-v2h4-36q2, GHSA-px74-p6x8-q327, MINI-8qg8-hxh4-9jcq.