CVE-2026-19167

Description

A flaw was found in Google Chrome. An integer overflow vulnerability in the Graphics Processing Unit (GPU) component could allow a remote attacker, who has already compromised the renderer process, to leak sensitive cross-origin data. This exploitation is possible by enticing a user to visit a specially crafted HTML page.

Statement

This Moderate impact vulnerability in the Chromium browser's GPU component could allow a remote attacker, after successfully compromising the renderer process, to exploit an integer overflow and leak sensitive cross-origin data. This risk is primarily relevant to users who process untrusted web content.

Understanding the Weakness (CWE)

CWE-190

Availability

Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (Memory); DoS: Instability

This weakness can generally lead to undefined behavior and therefore crashes. When the calculated result is used for resource allocation, this weakness can cause too many (or too few) resources to be allocated, possibly enabling crashes if the product requests more resources than can be provided.

Integrity

Technical Impact: Modify Memory

If the value in question is important to data (as opposed to flow), simple data corruption has occurred. Also, if the overflow/wraparound results in other conditions such as buffer overflows, further memory corruption may occur.

Confidentiality,Availability,Access Control

Technical Impact: Execute Unauthorized Code or Commands; Bypass Protection Mechanism

This weakness can sometimes trigger buffer overflows, which can be used to execute arbitrary code. This is usually outside the scope of the product's implicit security policy.

Availability,Other

Technical Impact: Alter Execution Logic; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU)

If the overflow/wraparound occurs in a loop index variable, this could cause the loop to terminate at the wrong time - too early, too late, or not at all (i.e., infinite loops). With too many iterations, some loops could consume too many resources such as memory, file handles, etc., possibly leading to a crash or other DoS.

Access Control

Technical Impact: Bypass Protection Mechanism

If integer values are used in security-critical decisions, such as calculating quotas or allocation limits, integer overflows can be used to cause an incorrect security decision.

Frequently Asked Questions

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