CVE-2026-9951: High Use after free in UI
Chromium: CVE-2026-9951 Use after free in UI
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 UI in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to potentially perform a sandbox escape 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
Google Chrome / Chromiumto a version that resolves this vulnerability.Fixed in 148.0.7778.216 - Upgrade
Upgrade
Microsoft Edge (Chromium-based)to a version that resolves this vulnerability.Fixed in 148.0.7778.216
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-2026-19558
- 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-2026-7991
- CVE-2026-11681
- CVE-2026-19145
- CVE-2026-13034
- CVE-2026-19165
Frequently Asked Questions
What is the severity of CVE-2026-9951?
CVE-2026-9951 has a high severity rating of 8.3 according to the CVSS 3.1 scoring system.
How do I fix CVE-2026-9951?
To fix CVE-2026-9951, update Google Chrome to version 148.0.7778.216 or later, or update Microsoft Edge to a version that includes the patch.
What causes CVE-2026-9951?
CVE-2026-9951 is caused by a use after free vulnerability in the user interface of Google Chrome.
What versions of software are affected by CVE-2026-9951?
CVE-2026-9951 affects versions of Google Chrome prior to 148.0.7778.216 and earlier Microsoft Edge versions that use the Chromium engine.
Can CVE-2026-9951 be exploited remotely?
Yes, CVE-2026-9951 can be exploited remotely, potentially allowing attackers to execute arbitrary code.