CVE-2026-19556: Use after free in V8
Chromium: CVE-2026-19556 Use after free in V8
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 V8 in Google Chrome prior to 151.0.7922.137 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
— NVD
Credit
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 151.0.7922.137 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 151.0.4129.86 - Upgrade
Upgrade
Chromium-based browsers (Google Chrome / Microsoft Edge)to a version that resolves this vulnerability.Fixed in 151.0.7922.137
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-19556?
CVE-2026-19556 has a severity rating of 8.8, categorized as high.
How do I fix CVE-2026-19556?
To mitigate CVE-2026-19556, update Google Chrome to version 151.0.7922.137 or later.
What causes CVE-2026-19556?
CVE-2026-19556 is caused by a use after free vulnerability in the V8 engine of Google Chrome.
What are the potential impacts of CVE-2026-19556?
Exploitation of CVE-2026-19556 could allow remote attackers to execute arbitrary code within a sandbox.
Which versions of Google Chrome are affected by CVE-2026-19556?
Google Chrome versions prior to 151.0.7922.137 are affected by CVE-2026-19556.