CVE-2026-42434
OpenClaw: Sandboxed agents could escape exec routing via host=node override
Description
## Summary Sandboxed agents could escape exec routing via host=node override. ## Affected Packages / Versions - Package: `openclaw` - Ecosystem: npm - Affected versions: `>= 2026.4.5 < 2026.4.10` - Patched versions: `>= 2026.4.10` ## Impact A sandboxed agent could request `host: "node"` and route exec to a remote node instead of the intended sandbox execution path, bypassing the sandbox routing boundary. ## Technical Details The fix blocks sandboxed exec escape to remote node targets and keeps routing aligned with the active sandbox policy. ## Fix The issue was fixed in #63880. The first stable tag containing the fix is `v2026.4.10`, and `[email protected]` includes the fix. ## Fix Commit(s) - `dffad08529202edbf34e4808788e1182fe10f6a9` - PR: #63880 ## Release Process Note Users should upgrade to `openclaw` 2026.4.10 or newer. The latest npm release, `2026.4.14`, already includes the fix. ## Credits Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.
How to fix CVE-2026-42434
To remediate CVE-2026-42434, upgrade the affected package to a fixed version below.
- —upgrade to 2026.4.10 or later
Is CVE-2026-42434 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2026.4.5, < 2026.4.10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N |
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |