CVE-2026-126879
Description
A flaw was found in chromium-browser. A memory management issue (use-after-free) in the Layout component allows a remote attacker to execute arbitrary code within the application's sandbox by convincing a user to open a specially crafted HTML page.
Statement
This vulnerability is rated as Important severity because, although an attacker can achieve remote code execution by tricking a user into rendering malicious web content, execution is confined within the browser's sandbox. In Red Hat Enterprise Linux environments, chromium-browser is an optional graphical application not installed or active in default server profiles. The risk is further bounded by the requirement for direct user interaction, preventing unprompted or automated exploitation against headless infrastructure.
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.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
