CVE-2026-9881: Use after free in Bluetooth

Published Apr 22, 2026
·
Updated

Chromium: CVE-2026-9881 Use after free in Bluetooth

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 Bluetooth in Google Chrome on Mac prior to 148.0.7778.216 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: Critical)

— NVD

Credit

Google

Affected Software

6 affected componentsFixes available
Google Google Chrome for macOS<148.0.7778.216
Google Chrome<148.0.7778.216
148.0.7778.216
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<148.0.3967.96
All of the following
Google Chrome<148.0.7778.216
Apple macOS

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216
  2. Upgrade

    Upgrade Google Chrome (Chromium-based) on Mac to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216
  3. Compensating control

    On affected systems, prevent users from installing untrusted/malicious Chrome extensions until Chromium is updated to 148.0.7778.216 or later.

Event History

Apr 22, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 28, 2026
CVE Published
via MITRE·10:25 PM
Data Sourced
via MITRE·10:25 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software
May 29, 2026
Data Sourced
via Microsoft·11:19 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·11:19 PM
DescriptionAffected Software
Apr 28, 58520
Event
via FIRST·08:55 AM

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-9881?

The severity of CVE-2026-9881 is critical with a score of 9 according to CVSS 3.1.

2

How do I fix CVE-2026-9881?

To fix CVE-2026-9881, update Google Chrome or Microsoft Edge to the latest version that includes the security patch.

3

What type of vulnerability is CVE-2026-9881?

CVE-2026-9881 is categorized as a use after free vulnerability in Bluetooth.

4

Which versions of browsers are affected by CVE-2026-9881?

CVE-2026-9881 affects Google Chrome on macOS versions prior to 148.0.7778.2 and related versions of Microsoft Edge.

5

How was CVE-2026-9881 discovered?

CVE-2026-9881 was discovered as a result of ongoing security auditing and testing within the Chromium project.

Company

Resources

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