Use After Free in BrowserTag in Google Chrome

Publication date: 2026-06-30

Last updated on: 2026-06-30

Assigner: Chrome

Description

Use after free in BrowserTag in Google Chrome prior to 150.0.7871.47 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-30

Last Modified

2026-06-30

Generated

2026-07-01

AI Q&A

2026-07-01

EPSS Evaluated

N/A

NVD

CVE-2026-14040

EUVD

EUVD-2026-40727

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 150.0.7871.47 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-416	The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Attack-Flow Graph

Executive Summary

This vulnerability is a use-after-free issue in the BrowserTag component of Google Chrome versions prior to 150.0.7871.47. It allows an attacker who convinces a user to install a malicious Chrome extension to potentially exploit heap corruption by using a specially crafted extension.

Impact Analysis

If exploited, this vulnerability could lead to heap corruption, which might allow an attacker to execute arbitrary code or cause a crash in the browser. However, the severity is rated as low, indicating limited impact or difficulty in exploitation.

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