CVE-2021-21164: Insufficient data validation in Chrome for iOS

Published Jan 11, 2021
·
Updated

Insufficient data validation in Chrome on iOS in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Credit

Muneaki Nishimura (nishimunea)

Affected Software

7 affected componentsFixes available
Google Chrome<89.0.4389.72
89.0.4389.72
Google Chrome<89.0.4389.72
Apple iPhone OS
Fedoraproject Fedora=32
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Debian Debian Linux=10.0

Event History

Jan 11, 2021
CVE Published
12:00 AM
Mar 9, 2021
CVE Published
via MITRE·05:46 PM
Data Sourced
via MITRE·05:46 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

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-2021-21164?

The severity of CVE-2021-21164 is classified as high due to its potential to leak cross-origin data.

2

How do I fix CVE-2021-21164?

To fix CVE-2021-21164, update your Google Chrome to version 89.0.4389.72 or later.

3

Which versions of Google Chrome are affected by CVE-2021-21164?

CVE-2021-21164 affects Google Chrome versions prior to 89.0.4389.72.

4

Can CVE-2021-21164 affect users on iOS?

Yes, CVE-2021-21164 affects users of Google Chrome on iOS prior to version 89.0.4389.72.

5

Is CVE-2021-21164 present in other operating systems?

CVE-2021-21164 primarily affects Google Chrome on iOS but may be relevant for Chrome on other platforms as well.

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