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Critical· 9official fix available

CVE-2026-9881

A critical bug in Google Chrome on macOS allows a malicious Chrome extension to exploit a use‑after‑free bug in the Bluetooth code. If an attacker tricks a user into installing a crafted extension, the bug could let the attacker escape Chrome’s sandbox and run code on the host. The issue is fixed in Chrome version 148.0.7778.216 and later.

publishedMay 28, 2026
last modifiedJul 21, 2026
sourcesNVD
severity · cvss
9
critical · how bad it is
exploitation · epss
<1%
10th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Aug 20, 2026

An official fix is available, so this entry is kept for 30 days and then removed automatically.

01

Who is affected

Google Chrome on macOS, versions earlier than 148.0.7778.216. Typical users are macOS users running Chrome who might install extensions.

02

Real-world impact

An attacker could escape the browser sandbox and execute arbitrary code on the victim’s computer, potentially taking full control of the system.

03

Why this severity

The CVSS score of 9 reflects that the vulnerability is exploitable over the network (any user can be targeted), requires no special privileges, and can lead to complete compromise of confidentiality, integrity, and availability. The high attack complexity and lack of user interaction make it a critical risk.

04

What to do about it

official fix available
recommended steps
  1. 01Upgrade Google Chrome to version 148.0.7778.216 or later.
  2. 02Restart the browser.

NVD description

05

Timeline

  1. May 28, 2026 · May 28, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 21, 2026 · 14d ago
    Advisory updated
    The NVD record was last revised.
  3. Jul 21, 2026 · 14d ago
    Official fix available
    A vendor patch or mitigation now exists — see the remediation steps above.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityHigh
Privileges requiredNone
User interactionNone needed
ScopeChanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

NVD advisory ↗Search advisories ↗
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →