CVE-2021-30888: High severity Apple tvOS vulnerability

Published Aug 24, 2021
·
Updated

A flaw was found in WebKitGTK. An information leakage issue was addressed.

References: https://webkitgtk.org/security/WSA-2021-0007.html https://www.openwall.com/lists/oss-security/2021/12/20/6

Other sources

An information leakage issue was addressed. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior .

MITRE

WebKit. An information leakage issue was addressed.

Credit

Prakash@@1lastBr3ath

Affected Software

16 affected componentsFixes available
Apple tvOS<15.1
15.1
Apple WatchOS<8.1
8.1
Apple macOS Monterey<12.0.1
12.0.1
Apple Safari<15.1
15.1
Apple iOS<14.8.1
14.8.1
Apple iPadOS<14.8.1
14.8.1
Apple iOS<15.1
15.1
Apple iPadOS<15.1
15.1
Apple Ipad Os<14.8.1
Apple iPadOS=15.0
Apple iPhone OS<14.8.1
Apple iPhone OS=15.0
Apple macOS<12.0.1
Apple tvOS<15.1
Apple WatchOS<8.1
redhat/webkitgtk<2.34.0
2.34.0

Event History

Aug 24, 2021
CVE Published
via MITRE·06:49 PM
Data Sourced
via MITRE·06:49 PM
DescriptionWeakness
Dec 20, 2021
Data Sourced
via Red Hat·07:20 PM
DescriptionSeverityAffected Software

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 CVE-2021-30888?

CVE-2021-30888 is an information leakage issue in WebKit that has been addressed.

2

Which software products are affected by CVE-2021-30888?

CVE-2021-30888 affects multiple Apple software products including Safari, iOS, iPadOS, macOS Monterey, tvOS, and watchOS.

3

What versions of Safari are affected by CVE-2021-30888?

Safari versions up to and excluding 15.1 are affected by CVE-2021-30888.

4

How can I fix CVE-2021-30888?

To fix CVE-2021-30888, update your affected Apple software products to the latest available versions.

5

Where can I find more information about CVE-2021-30888?

You can find more information about CVE-2021-30888 on the Apple support website.

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