Use-After-Free in Chrome CSS Enables High-Severity Remote Code Execution

Publication date: 2026-04-01

Last updated on: 2026-06-01

Assigner: Chrome

Description

Use after free in CSS in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-01

Last Modified

2026-06-01

Generated

2026-07-06

AI Q&A

2026-04-01

EPSS Evaluated

2026-07-05

NVD

CVE-2026-5273

EUVD

EUVD-2026-17781

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 146.0.7680.177 (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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 CSS component of Google Chrome versions prior to 146.0.7680.178. It allows a remote attacker to execute arbitrary code within a sandboxed environment by tricking a user into visiting a specially crafted HTML page.

Impact Analysis

The impact of this vulnerability is that an attacker could run arbitrary code on your system inside the browser's sandbox. This could potentially lead to unauthorized actions or compromise of your browser environment, although the code execution is limited to the sandbox.

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