What’s Vulnerable › Vulnerabilities

CVE-2021-20834

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-13 · updated 2026-06-17
• Weakness: CWE-862

Description

Improper authorization in handler for custom URL scheme vulnerability in Nike App for Android versions prior to 2.177 and Nike App for iOS versions prior to 2.177.1 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.

Affected products

• Nike, Inc. Nike App for Android versions prior to 2.177 and Nike App for iOS versions prior to 2.177.1: before 2.177.1; before 2.177.3.3688 — fixed in 2.177.1, 2.177.3.3688

How to fix

Upgrade to a fixed version: Nike, Inc. Nike App for Android versions prior to 2.177 and Nike App for iOS versions prior to 2.177.1 2.177.1, 2.177.3.3688. Check the vendor advisory for mitigations.

References

• https://apps.apple.com/app/nike/id1095459556
• https://jvn.jp/en/jp/JVN89126639/index.html
• https://play.google.com/store/apps/details?id=com.nike.omega
• https://apps.apple.com/app/nike/id1095459556
• https://jvn.jp/en/jp/JVN89126639/index.html
• https://play.google.com/store/apps/details?id=com.nike.omega

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