CVE-2026-126919
Description
A flaw was found in Google Chrome's BrowserTag component. A remote attacker could exploit a use-after-free memory vulnerability by convincing a user to visit a specially crafted HTML page. Successful exploitation allows the attacker to execute arbitrary code within the browser's sandbox environment.
Statement
This vulnerability is rated as Important rather than Critical because successful exploitation requires user interaction to visit a malicious website, and the resulting code execution is confined to the Chromium sandbox environment. Red Hat Enterprise Linux systems deployed in typical server configurations do not run graphical desktop browsers and are therefore not exposed. Systems running desktop environments with Chromium installed are vulnerable when users browse untrusted web pages.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Memory
If the expired pointer is used in a read operation, an attacker might be able to control data read in by the application.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
If the expired pointer references a memory location that is not accessible to the product, or points to a location that is "malformed" (such as NULL) or larger than expected by a read or write operation, then a crash may occur.
Integrity,Confidentiality,Availability
Technical Impact: Execute Unauthorized Code or Commands
If the expired pointer is used in a function call, or points to unexpected data in a write operation, then code execution may be possible.
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