CVE-2026-13861: Use after free in Core on 2026-03-23

Published Mar 23, 2026
·
Updated

Chromium: CVE-2026-13861 Use after free in Core

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 Core in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

— NVD

Affected Software

7 affected componentsFixes available
Google Chrome<150.0.7871.47
All of the following
Google Chrome<150.0.7871.46
Any of the following
Apple macOS
Linux Linux kernel
Microsoft Windows
Microsoft Edge (Chromium-based)<150.0.4078.48
150.0.4078.48
Microsoft Edge<150.0.4078.48

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 150.0.4078.48
  2. Upgrade

    Upgrade Google Chrome/Chromium (Core) to a version that resolves this vulnerability.

    Fixed in 150.0.7871.47
  3. Compensating control

    For Chromium-based browsers (e.g., Microsoft Edge), mitigate risk by limiting exposure of the renderer process to untrusted web content (e.g., isolate or restrict navigation to untrusted sites) until updated to address CVE-2026-13861.

Event History

Jun 30, 2026
CVE Published
via MITRE·10:38 PM
Data Sourced
via MITRE·10:38 PM
DescriptionWeakness
Data Sourced
via NVD·11:17 PM
DescriptionSeverityWeaknessAffected Software
Jul 3, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software
Jul 16, 2026
Data Sourced
12:00 AM
SeverityWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2026-13861?

The severity of CVE-2026-13861 is rated as critical with a CVSS score of 9.6.

2

How do I fix CVE-2026-13861?

To fix CVE-2026-13861, update Google Chrome to version 150.0.7871.47 or later.

3

What does CVE-2026-13861 affect?

CVE-2026-13861 affects Google Chrome and Microsoft Edge (Chromium-based) versions prior to 150.0.7871.47.

4

What type of vulnerability is CVE-2026-13861?

CVE-2026-13861 is a use after free vulnerability in the Core component of Chromium.

5

Who is responsible for addressing CVE-2026-13861?

CVE-2026-13861 was reported and assigned by Chrome, and Microsoft Edge (Chromium-based) includes patches for this vulnerability.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203