CVE-2026-42434 OpenClaw 2026.4.5 < 2026.4.10 - Sandbox Escape via host Parameter Override in Exec Routing
Attackers can bypass sandbox restrictions by overriding exec routing parameters, allowing unauthorized code execution on remote nodes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-42434?
CVE-2026-42434 is a high-severity vulnerability in OpenClaw, published on 5 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenClaw versions 2026.4.5 before 2026.4.10 contain a sandbox escape vulnerability allowing sandboxed agents to override exec routing by specifying host=node. Attackers can bypass sandbox boundaries and route execution to remote nodes instead of intended sandbox paths.
Weakness: CWE-863
Which versions are affected by CVE-2026-42434?
2 open source packages ship an affected version, including openclaw.
| Package | Affected | Fixed in |
|---|---|---|
openclaw npm | From 2026.4.5 | 2026.4.10 |
openclaw npm | From 2026.4.5 | 2026.4.10 |
How do I fix CVE-2026-42434?
Upgrade openclaw to 2026.4.10 or later.
Is CVE-2026-42434 being exploited?
There is no known exploitation of CVE-2026-42434 in the wild and no public exploit code.
Sources
Also known as GHSA-736r-jwj6-4w23, MINI-mhmj-6xw4-4x57.