Openclaw cli: OpenClaw: Sandboxed agents could escape exec routing via host=node override (CVE-2026-42434)
Description
OpenClaw CLI versions 2026.4.7 through 2026.4.9 contain a vulnerability allowing sandboxed agents to bypass sandbox routing by overriding the host to 'node', enabling execution routing to a remote node instead of the sandbox. This flaw was fixed in version 2026.4.10 and later.
CVSS v3.1
Score 8.8high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in OpenClaw CLI (CVE-2026-42434) allows sandboxed agents to escape the intended sandbox execution routing by requesting the host parameter as 'node'. This causes the execution to be routed to a remote node, bypassing the sandbox routing boundary. The issue affects versions from 2026.4.7 up to but not including 2026.4.10. The fix, implemented in pull request #63880 and commit dffad08529202edbf34e4808788e1182fe10f6a9, blocks sandboxed exec escape to remote node targets and enforces routing aligned with the active sandbox policy. Users are advised to upgrade to version 2026.4.10 or newer, with 2026.4.14 including the fix.
Potential Impact
An attacker controlling a sandboxed agent can bypass sandbox routing restrictions by overriding the host parameter to 'node', causing execution to be routed outside the sandbox to a remote node. This results in a complete compromise of confidentiality, integrity, and availability within the affected environment, as indicated by the CVSS score of 8.8 (high severity).
Mitigation Recommendations
A patch is available and users should upgrade to OpenClaw CLI version 2026.4.10 or later. The latest npm release 2026.4.14 includes the fix. Applying this update prevents sandboxed agents from escaping the sandbox routing boundary via the host=node override.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BREW-openclaw-cli-CVE-2026-42434
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["Homebrew"]
- Cvss Version
- 3.1
Threat ID: 6ac2459712601ec6a3165d1e
Added to database: 10/04/2026, 12:24:55 UTC
Last enriched: 10/04/2026, 12:43:20 UTC
Last updated: 10/04/2026, 16:08:38 UTC
Views: 2
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