Out-of-Bounds Read in Google Chrome Extensions on Linux

Publication date: 2026-06-04

Last updated on: 2026-06-08

Assigner: Chrome

Description

Out of bounds read in Extensions in Google Chrome on Linux prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-04

Last Modified

2026-06-08

Generated

2026-07-15

AI Q&A

2026-06-05

EPSS Evaluated

2026-07-14

NVD

CVE-2026-11143

EUVD

EUVD-2026-34604

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 149.0.7827.53 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

Executive Summary

This vulnerability is an out of bounds read in the Extensions component of Google Chrome on Linux versions prior to 149.0.7827.53. It allows an attacker who convinces a user to install a malicious Chrome extension to potentially access sensitive information from the process memory by exploiting the crafted extension.

Impact Analysis

If exploited, this vulnerability could allow an attacker to obtain potentially sensitive information from the memory of the Chrome process. This could lead to unauthorized access to data that the user or browser is handling, potentially compromising privacy or security.

Hi! I’m here to help you understand CVE-2026-11143. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70