CVE-2026-113261
Description
A flaw was found in the WebAppInstalls component of the Chromium browser. This vulnerability allows a remote attacker to achieve arbitrary code execution outside the browser sandbox by convincing a user to view a specially crafted HTML page. The issue stems from a use-after-free condition, where the application incorrectly accesses memory after it has already been released, leading to memory corruption.
Statement
This vulnerability is rated with an Important severity because it enables remote code execution that bypasses client-side sandbox isolation, although successful exploitation requires user interaction to load a malicious page. While upstream evaluates the flaw at a lower severity, the potential to escape confinement and compromise the host environment elevates the overall risk. Chromium is not included in core Red Hat Enterprise Linux repositories, limiting exposure primarily to community distributions such as Fedora and Extra Packages for Enterprise Linux (EPEL).
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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