🛡️ CVE-2026-42434 — openclaw

🟠 CVSS 8.8 — High ✅ No Known Exploit CWE-863 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenClaw: Sandboxed agents could escape exec routing via host=node override

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 this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-42434 is classified as CWE-863: Incorrect Authorization. An authorisation check runs but reaches the wrong conclusion, permitting actions it should refuse.

Affected software

CVE-2026-42434 is recorded against 2 packages.

  • openclaw
  • unknown

Timeline and source

Published on 17 April 2026 and last revised on 8 May 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
www.vulncheck.com (Web)

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-863
Public Exploit ✅ No
Source NVD
Published 2026-04-17
Updated 2026-08-12
Modified 2026-05-08
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw
unknown

Similar Threats

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