CVE-2026-17778: Use after free in Extensions

Published May 15, 2026
·
Updated

Chromium: CVE-2026-17778 Use after free in Extensions

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 Extensions in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: Medium)

— NVD

Credit

Google

Affected Software

4 affected componentsFixes available
Google Google Chrome<151.0.7922.72
Google Chrome<151.0.7922.71
151.0.7922.71
Microsoft Edge (Chromium-based)<151.0.4129.59
151.0.4129.59
Microsoft Edge<151.0.4129.59

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 151.0.7922.71
  2. Upgrade

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

    Fixed in 151.0.4129.59
  3. Upgrade

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

    Fixed in 151.0.7922.72

Event History

May 15, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jul 30, 2026
CVE Published
via MITRE·12:19 AM
Data Sourced
via MITRE·12:19 AM
DescriptionWeakness
Data Sourced
via NVD·01:16 AM
DescriptionSeverityWeakness
Jul 31, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software

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 CVE-2026-17778?

CVE-2026-17778 is a high severity vulnerability in Google Chrome and Microsoft Edge that involves a use after free error in Extensions.

2

What is the severity level of CVE-2026-17778?

The severity level of CVE-2026-17778 is high, with a CVSS score of 8.8.

3

How do I fix CVE-2026-17778?

To fix CVE-2026-17778, update Google Chrome or Microsoft Edge to the latest version, which addresses this vulnerability.

4

Which versions are affected by CVE-2026-17778?

CVE-2026-17778 affects Google Chrome versions prior to 151.0.7922.72 and the corresponding versions of Microsoft Edge.

5

What impact can CVE-2026-17778 have?

CVE-2026-17778 can lead to security risks such as memory corruption, allowing attackers to exploit the vulnerability for unauthorized access.

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