CVE-2026-42434

8.7 highEPSS 0.3%

High (8.7). EPSS 0.3% chance of exploitation in the next 30 days. Fixed in openclaw 2026.4.10.

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.

Severity

CVSS 4.0

8.7 high

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

CVSS 3.1

8.8 high

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

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-863
Published: 2026-05-05
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Packages (OSV)

Advisory	Ecosystem	Package	Affected	Fixed in
GHSA-736r-jwj6-4w23	npm	openclaw	>=2026.4.5 <2026.4.10	2026.4.10

References

https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing

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