Description
Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
Published: 2026-05-14
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a use–after–free flaw located in the Tab Groups feature of Google Chrome. The flaw allows a remote attacker to trigger arbitrary code execution by sending specially crafted network traffic to a vulnerable Chrome instance. The underlying weakness corresponds to CWE-416 and the misuse of stale or corrupted memory characteristic of CWE-825, and it is evaluated by Chromium as critical severity.

Affected Systems

Google Chrome browsers prior to version 148.0.7778.168 on the desktop stable channel are affected. The issue does not specify any particular operating systems but applies to all platforms for which the desktop stable channel is available.

Risk and Exploitability

The flaw can be exploited remotely via malicious network traffic, requiring only an attacker capable of delivering such traffic to the victim machine. The EPSS score is < 1%, indicating a very low overall exploitation probability, and the vulnerability is not listed in the CISA KEV catalog. A CVSS score of 7.5 denotes high severity, and the remote nature of the attack vector implies a serious risk to affected systems.

Generated by OpenCVE AI on May 15, 2026 at 14:22 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Google Chrome to version 148.0.7778.168 or later on all affected machines.
  • Restart the Chrome process or the host machine to ensure the updated binaries are loaded.
  • Verify that Chrome’s automatic update feature is enabled, or manually check for updates to receive the latest patch.

Generated by OpenCVE AI on May 15, 2026 at 14:22 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6273-1 chromium security update
History

Fri, 15 May 2026 12:15:00 +0000

Type Values Removed Values Added
Title Use After Free in Chrome Tab Groups Allowing Remote Code Execution chromium-browser: chromium-browser: Use after free in Tab Groups
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Critical


Thu, 14 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Thu, 14 May 2026 22:30:00 +0000

Type Values Removed Values Added
Title Use After Free in Chrome Tab Groups Allowing Remote Code Execution

Thu, 14 May 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 14 May 2026 20:15:00 +0000

Type Values Removed Values Added
Description Use after free in Tab Groups in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code via malicious network traffic. (Chromium security severity: Critical)
Weaknesses CWE-416
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-05-15T03:56:33.060Z

Reserved: 2026-05-14T05:40:13.118Z

Link: CVE-2026-8521

cve-icon Vulnrichment

Updated: 2026-05-14T20:33:26.400Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-14T20:17:12.877

Modified: 2026-05-14T21:19:23.923

Link: CVE-2026-8521

cve-icon Redhat

Severity : Critical

Publid Date: 2026-05-14T19:52:15Z

Links: CVE-2026-8521 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-15T14:30:46Z

Weaknesses