CVE-2026-19156
Description
A flaw was found in Google Chrome's Base component. An attacker could convince a user to install a malicious extension, leading to a heap buffer overflow. This vulnerability allows for potential heap corruption, which could be exploited to impact the integrity and availability of the browser.
Statement
An Important heap buffer overflow flaw was found in the Base component of Chromium. This vulnerability requires a user to install a specially crafted malicious extension, which could then lead to heap corruption and potentially compromise the browser's integrity and availability. While user interaction is required, the potential for significant impact on affected systems warrants the Important severity.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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