CVE-2026-100589CWE-863broken-access-control

CVE-2026-100589

High · published September 26, 2026

CVSS v3.1
8.3
EPSS
0%
Percentile
23.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CVSS v4.0
8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
EPSS
0.00319 · 23.7th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-09-26T07:17Z
References (2)
https://github.com/openclaw/openclaw/security/advisories/GHSA-9x88-f7rh-4c83 · [email protected]https://www.vulncheck.com/advisories/openclaw-before-2026.7.1-sandbox-bypass-via-browser-node · [email protected]
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 26 SEP 02:19Z
    OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node
    cvelistv5