CVE-2026-9873: Use after free in Network
Chromium: CVE-2026-9873 Use after free in Network
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 Network in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Critical)
— NVD
Credit
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-9873?
CVE-2026-9873 has a high severity rating of 8.8 according to the CVSS 3.1 score.
How do I fix CVE-2026-9873?
To fix CVE-2026-9873, update Google Chrome to version 148.0.7778.216 or later, or update Microsoft Edge to its latest version.
What causes CVE-2026-9873?
CVE-2026-9873 is caused by a use after free vulnerability in the Network component of Google Chrome.
Which software is affected by CVE-2026-9873?
The affected software includes Google Chrome and Microsoft Edge (Chromium-based).
Is CVE-2026-9873 being actively exploited?
As of the last update, there has been no reported active exploitation of CVE-2026-9873.