CVE-2026-42434 | THREATINT

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.

PUBLISHED Reserved 2026-04-27 | Published 2026-05-05 | Updated 2026-05-05 | Assigner VulnCheck

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-863: Incorrect Authorization

Product status

Default status

unaffected

2026.4.5 (semver) before 2026.4.10

affected

2026.4.10 (semver)

unaffected

Credits

zsx (@zsxsoft) reporter

KeenSecurityLab coordinator

qclawer tool

References

github.com/...enclaw/security/advisories/GHSA-736r-jwj6-4w23 (GitHub Security Advisory (GHSA-736r-jwj6-4w23)) vendor-advisory

github.com/...ommit/dffad08529202edbf34e4808788e1182fe10f6a9 (Patch Commit) patch

www.vulncheck.com/...host-parameter-override-in-exec-routing (VulnCheck Advisory: OpenClaw 2026.4.5 < 2026.4.10 - Sandbox Escape via host Parameter Override in Exec Routing) third-party-advisory

cve.org (CVE-2026-42434)

nvd.nist.gov (CVE-2026-42434)

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