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CVE-2026-9891

nvd nist
Published: May 28, 2026Modified: Jul 21, 2026

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9.0
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitability: 2.2 / Impact: 6.0
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

Use after free in Extensions in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: Critical)

Affected (2)

Products: Google: Chrome
Google
1 product
Chrome
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Chrome
Before 148.0.7778.216
Running on/withPlatform Versions
Microsoft
Windows
All versions
Configuration B
1 vulnerable · 2 platform
Vulnerable SoftwareAffected Versions
Chrome
Before 148.0.7778.215
Running on/withPlatform Versions
Apple
Macos
All versions
Linux
Linux Kernel
All versions

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

Source: chrome-cve-admin@google.com
Release NotesVendor Advisory
Source: chrome-cve-admin@google.com
Permissions Required

Timeline

No history available yet.