High severity · published May 5, 2026
CVE-2026-42434
OpenClaw 2026.4.5 < 2026.4.10 - Sandbox Escape via host Parameter Override in Exec Routing
8.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
2026.4.5 before 2026.4.10 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42434
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-42434
github.com
https://github.com/openclaw/openclaw/commit/dffad08529202edbf34e4808788e1182fe10f6a9
github.com
https://github.com/openclaw/openclaw/security/advisories/GHSA-736r-jwj6-4w23
www.vulncheck.com
https://www.vulncheck.com/advisories/openclaw-sandbox-escape-via-host-parameter-override-in-exec-routing
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