CVE-2026-126869
Description
A flaw was found in the Frames component of chromium-browser. A remote attacker could exploit this vulnerability by convincing a user to visit a specially crafted HTML page, potentially leading to arbitrary code execution within the browser sandbox. This issue stems from a use-after-free condition, where the application attempts to reuse memory after it has already been released.
Statement
This vulnerability is rated as Important because an unauthenticated remote attacker could execute arbitrary code within the renderer process if a user is enticed to open malicious web content. In Red Hat Enterprise Linux environments, chromium-browser is an optional graphical package used for interactive desktop sessions rather than standard server workloads. Although the flaw allows memory corruption during frame handling, damage is restricted to the browser sandbox environment, which prevents direct operating system takeover without an accompanying privilege escalation or sandbox bypass.
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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