CVE-2026-5273: Use after free in CSS
Chromium: CVE-2026-5273 Use after free in CSS
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 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)
— NVD
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-5273?
CVE-2026-5273 has a security severity rating of High.
How do I fix CVE-2026-5273?
To fix CVE-2026-5273, update Google Chrome to version 146.0.7680.178 or later.
What does CVE-2026-5273 exploit?
CVE-2026-5273 exploits a use after free vulnerability in the CSS component of Google Chrome.
Can CVE-2026-5273 lead to arbitrary code execution?
Yes, CVE-2026-5273 can allow a remote attacker to execute arbitrary code within a sandbox environment.
Which version of Google Chrome is affected by CVE-2026-5273?
Google Chrome versions prior to 146.0.7680.178 are affected by CVE-2026-5273.