CVE-2026-19557

Analyzed Analyzed - Analysis Complete

Use After Free in Google Chrome TabStrip on Mac

Publication date: 2026-08-11

Last updated on: 2026-08-17

Assigner: Chrome

Description

Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-11

Last Modified

2026-08-17

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-19557

EUVD

EUVD-2026-56984

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.137 (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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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 TabStrip component of Google Chrome on Mac. It occurs when a program tries to use memory that has already been freed, potentially leading to crashes or arbitrary code execution. An attacker who compromised the renderer process could exploit this via a specially crafted HTML page to escape the sandbox.

Detection Guidance

This vulnerability is specific to Google Chrome on Mac prior to version 151.0.7922.137. Detection involves checking the installed Chrome version and monitoring for suspicious renderer process activity. Use chrome://version/ in Chrome to verify the version. If below 151.0.7922.137, update immediately. No direct commands detect exploitation, but monitoring for renderer crashes or sandbox escapes may indicate compromise.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system, bypassing security restrictions. This might lead to unauthorized access to data, installation of malware, or further compromise of your device. Users should update Chrome immediately to mitigate the risk.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it involves a sandbox escape in Google Chrome. Compliance impacts would depend on how the vulnerability is exploited in a specific environment, but no direct regulatory implications are described in the provided context.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.137 or later to address the use after free vulnerability in TabStrip.

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