: It is widely considered the technical successor to a similar tool called ExtHang3r . Technical Context (CVE-2025-6179)
CVE-2025-6179: Chrome OS Auth Bypass Vulnerability - SentinelOne
is an open-source exploit hosted on platforms like GitHub, designed to disrupt the operation of web extensions in ChromeOS. It falls under the umbrella of student-driven, "unblocker" tools used to bypass restrictions set by school administrators (such as Gogaurduan or Securly) on school-issued laptops. extprint3r
ExtPrint3r relies on an asynchronous resource-exhaustion strategy targeted at specific sub-processes within the Chromium architecture. Rather than exploiting memory corruption or traditional privilege escalation flaws, it leverages architectural design choices regarding how the browser handles nested frames ( iframes ) and native print previews.
: Scripted versions of the tool allow users with minimal technical knowledge to execute the bypass by following step-by-step guides. : It is widely considered the technical successor
: The exploit targets internal extension URIs that are explicitly marked as web_accessible_resources by system administrators or software vendors.
: It exploits a vulnerability in the ChromeOS Extension Management subsystem to force existing extensions to stop running. : The exploit targets internal extension URIs that
—including those used by background extensions—to hang rather than the main page. Extension Disabling