High severity · published Sep 26, 2026
CVE-2026-100589
OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node
8.3
CVSS
0.3%
EPSS
No
On KEV
Description
OpenClaw versions before 2026.7.1 contain a sandbox bypass vulnerability in the browser tool that allows sandboxed sessions to access paired node browser actions despite allowHostControl=false configuration. Attackers with control over sandboxed agent input can select a paired node and perform host browser operations, inspecting or manipulating the connected browser profile and its authenticated state.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.7.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-100589
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-100589
vendor-advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-9x88-f7rh-4c83
third-party-advisory
https://www.vulncheck.com/advisories/openclaw-before-2026.7.1-sandbox-bypass-via-browser-node
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