Description

API key is hardcoded and retrievable from the application package. Since Android applications can be reverse engineered, embedding sensitive API credentials directly in the client application may allow unauthorized users to extract and misuse the key.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.5",
  "pubDate": "2026-10-02T01:16:42.930Z",
  "pubdate": "2026-10-02T01:16:42.930Z",
  "executiveSummary": "This vulnerability involves the presence of sensitive API credentials hardcoded directly within the source code or binary of an Android application package. By embedding secrets in the client-side binary, developers inadvertently expose authentication tokens, private keys, or API credentials to anyone capable of deconstructing the application package.\nThe vulnerability is classified as an improper credential management flaw. The primary risk is unauthorized access to backend services, third-party APIs, or sensitive user data associated with the leaked credentials. Because Android applications are easily decompliable via tools such as JADX or apktool, an attacker can extract these secrets with minimal technical effort. There are no special privileges required to perform this extraction, as the application package is inherently accessible to the end-user. Once extracted, these credentials can be used to impersonate the application in API requests, potentially leading to data exfiltration, service abuse, or complete compromise of the associated backend infrastructure. The exposure is persistent and cannot be mitigated without a full application update.",
  "technicalDetails": "The root cause of this vulnerability is the violation of secure credential storage practices within the mobile application development lifecycle. Sensitive information, such as API keys or authentication tokens, is stored as static string literals within the application binary's compiled code (e.g., classes.dex) or within resource files (e.g., strings.xml).\nThe exploitation flow begins with the attacker acquiring the Android Application Package (APK). Since APK files are essentially ZIP archives, they can be easily extracted using standard decompression tools. Once the package is acquired, the attacker utilizes decompilation tools to convert the compiled bytecode back into a human-readable format, such as Java or Kotlin source code. Tools like JADX are commonly used to reconstruct the application structure, allowing the attacker to perform a static analysis of the codebase.\nDuring static analysis, the attacker conducts a keyword search for common patterns associated with sensitive data, such as 'API_KEY', 'SECRET', 'TOKEN', or 'PASSWORD'. Because these strings are stored in plain text, they are immediately visible within the decompiled source code. Once identified, the attacker extracts the key and can utilize it to craft unauthorized API requests by mimicking the application's communication patterns. This allows the attacker to bypass client-side security controls and interact directly with the backend service.\nThe impact of this exploitation includes the bypass of authentication mechanisms, unauthorized data access, and potential financial or operational loss if the API is associated with billable services or restricted resources. Because the key is static, an attacker can reuse the credentials across multiple sessions without the need for further interaction with the mobile client. Furthermore, if the compromised credential grants broad permissions, the attacker may be able to pivot from the API to other parts of the backend environment. This vulnerability is prevalent in applications that rely on client-side secrets to authenticate with cloud services, third-party SDKs, or proprietary APIs, all of which are susceptible regardless of the Android version, as the issue resides in the developer's implementation rather than the operating system's security model."
}