CVE-2026-19558: High Use after free in Extensions
Chromium: CVE-2026-19558 Use after free in Extensions
Other sources
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)
— NVD
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 151.0.4129.86 - Upgrade
Upgrade
Google Chrome/Chromium (Extensions)to a version that resolves this vulnerability.Fixed in 151.0.7922.137
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-76033
- CVE-2026-12462
- CVE-2026-12025
- CVE-2026-76018
- CVE-2026-12016
- CVE-2026-76023
- CVE-2026-11701
- CVE-2026-11664
- CVE-2026-76022
- CVE-2026-76045
- CVE-2026-13027
- CVE-2026-17693
- CVE-2026-15777
- CVE-2026-19144
- CVE-2026-11666
- CVE-2026-10949
- CVE-2026-11658
- CVE-2026-11652
- CVE-2026-19559
- CVE-2026-10938
- CVE-2026-9124
- CVE-2026-9951
- CVE-2026-7991
- CVE-2026-11681
- CVE-2026-19145
- CVE-2026-13034
- CVE-2026-19165
Frequently Asked Questions
What is the severity of CVE-2026-19558?
CVE-2026-19558 has a high severity rating due to the potential for arbitrary code execution.
How do I fix CVE-2026-19558?
To fix CVE-2026-19558, update Google Chrome to version 151.0.7922.137 or later.
What type of vulnerability is CVE-2026-19558?
CVE-2026-19558 is categorized as a use after free vulnerability.
What can an attacker achieve with CVE-2026-19558?
An attacker can execute arbitrary code inside a sandbox if a user installs a malicious Chrome extension.
In which software is CVE-2026-19558 found?
CVE-2026-19558 is found in Google Chrome prior to version 151.0.7922.137.