CVE-2026-103097 in GV-Eye
Summary
by MITRE • 10/02/2026
An 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.
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Analysis
by VulDB Data Team • 10/02/2026
The presence of a hardcoded Application Programming Interface (API) key within an Android application package represents a critical security misconfiguration that fundamentally undermines the confidentiality and integrity of backend services. In modern software development, particularly for mobile platforms like Android, it is a standard industry practice to avoid embedding sensitive credentials directly into client-side code or configuration files. Instead, applications should utilize secure mechanisms such as server-side proxying, dynamic token generation via trusted identity providers, or hardware-backed keystore systems that are significantly more resistant to extraction than static strings stored in the binary. When an API key is hardcoded, it becomes a permanent artifact of the application build process, persisting across all versions and installations unless the entire codebase is rebuilt and republished with new credentials.
The primary technical flaw lies in the inherent nature of Android package structures, which are essentially ZIP archives containing compiled bytecode (typically Dalvik Executable or ART format), resources, and manifest files. These packages are designed to be distributable and installable on user devices, meaning they must remain accessible at runtime. Consequently, any static string embedded within these components is susceptible to reverse engineering through common decompilation tools such as JADX, APKTool, or Ghidra. An attacker with basic knowledge of mobile security can easily extract the application package from a device or download it from an unofficial source and search for sensitive strings using simple pattern matching or regular expressions. This process requires no specialized exploit code or privilege escalation on the target device; it relies solely on the public availability of the binary artifact, making the attack vector highly accessible to both automated scanners and manual security researchers.
The operational impact of this vulnerability is severe because API keys often serve as authentication tokens that grant access to sensitive backend resources, such as user data, payment processing endpoints, or proprietary algorithms. Once extracted, these credentials can be used by unauthorized actors to impersonate the legitimate application, leading to direct financial loss through fraudulent transactions, excessive resource consumption resulting in denial-of-service conditions for the service provider, and significant reputational damage due to data breaches. Furthermore, because API keys are often tied to specific billing accounts or usage quotas, their misuse can incur substantial costs for the organization without immediate detection if monitoring is not robustly configured. The static nature of these keys means that even after discovery by security teams, revocation requires a full application update cycle, leaving users vulnerable during the interim period and potentially exposing legacy versions still in circulation to continued exploitation.
To mitigate this risk, organizations must adopt secure credential management practices aligned with industry standards such as CWE-798 (Use of Hard-coded Credentials) and OWASP Mobile Top 10 guidelines regarding insecure data storage. The most effective remediation strategy involves removing the hardcoded key from the client application entirely and instead implementing a server-side architecture where sensitive operations are performed by a trusted backend service that holds the credentials securely in environment variables or secret management systems like AWS Secrets Manager, Azure Key Vault, or HashiCorp Vault. If direct API calls from the mobile device are necessary for performance reasons, developers should implement dynamic token exchange flows using OAuth 2.0 or OpenID Connect, where the application obtains short-lived access tokens after authenticating with a secure backend service that holds the long-term secrets. Additionally, implementing code obfuscation tools like ProGuard or R8 can add minor friction to reverse engineering efforts but must not be relied upon as a primary security control since they are easily bypassed by determined attackers. Continuous monitoring of API usage patterns for anomalies and regular rotation of credentials further reduce the window of opportunity for exploitation in the event that static secrets cannot be completely eliminated from the client side.