CVE-2026-21543: Android Unknown Package DoS Vulnerability
Summary
CVE-2026-21543: ... Affects :unknown: versions >= SoCVersion:0, < SoCVersion:2026-06-05. Fixed in SoCVersion:2026-06-05. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The affected package is an unknown component within the Android ecosystem, which is widely used for developing mobile applications. Android provides a robust framework for building applications that can run on various devices. However, vulnerabilities within its components can lead to significant security risks, including denial of service (DoS) attacks that can disrupt application functionality.
Vulnerability Detail
This vulnerability, identified as CVE-2026-21543, originates from a flaw in the Android ecosystem that allows an attacker to exploit the affected package, leading to a denial of service condition. The severity of this vulnerability is classified as high, indicating that it poses a significant risk to applications relying on the affected package. If exploited, it could result in application crashes or unavailability, impacting user experience and potentially leading to data loss.
How To Fix
Minimum fixed version
SoCVersion:2026-06-05
This is the first release that contains the fix.
Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can implement rate limiting or input validation to reduce the risk of exploitation until the package is updated. This can help mitigate the impact of potential denial of service attacks.
Conclusion
In summary, CVE-2026-21543 represents a significant vulnerability within the Android ecosystem that can lead to denial of service attacks. It is crucial for developers to update their packages to the latest version to mitigate this risk and ensure the security and reliability of their applications.
See every vulnerability recorded for :unknown: →
FAQ
CVE-2026-21543 is a high-severity vulnerability in an unknown package within the Android ecosystem that can lead to denial of service attacks.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Exploitation of this vulnerability can lead to application crashes and unavailability, significantly impacting user experience and potentially causing data loss.
Update the package by modifying your build.gradle file to include the patched version and running 'gradle build' to apply the changes.
Vulert is a tool that monitors and alerts in real-time for open-source vulnerabilities in software using just the gradle.lockfile, providing an easy way to stay secure.
References
Related vulnerabilities
Recent vulnerabilities recorded for :unknown:.
