CVE-2025-54947 identifies a cryptographic vulnerability in Apache StreamPark versions 2.0.0 through before 2.1.7, where the software employs a hard-coded encryption key rather than generating keys dynamically or allowing secure configuration. This practice violates secure cryptographic principles (CWE-321) by embedding a fixed key within the application code, which can be extracted by attackers through reverse engineering or static code analysis. Once the key is obtained, attackers can decrypt sensitive data protected by the encryption mechanism or forge encrypted messages, potentially leading to unauthorized access or data manipulation. The vulnerability compromises both confidentiality and integrity of data handled by the affected software. Apache StreamPark is a data streaming and processing platform used in various enterprise environments, and the presence of a hard-coded key undermines the trustworthiness of its encryption. No CVSS score has been assigned yet, and no exploits have been reported in the wild, but the risk remains significant due to the nature of the flaw. The vendor has released version 2.1.7 to remediate this issue by removing the hard-coded key and implementing secure key management. Organizations still running vulnerable versions should prioritize upgrading and review their cryptographic implementations to prevent exploitation.

For European organizations, the impact of this vulnerability can be substantial, particularly for those relying on Apache StreamPark for processing sensitive or regulated data. The exposure of a hard-coded cryptographic key allows attackers to bypass encryption protections, leading to potential data breaches involving personal data, intellectual property, or operational information. This can result in regulatory non-compliance under GDPR, financial losses, reputational damage, and operational disruptions. Integrity attacks could allow malicious actors to inject false data or commands, affecting decision-making processes or automated workflows. The vulnerability does not require user interaction but does require access to the software binaries or source code, which could be obtained through insider threats or compromised development environments. Given the increasing adoption of Apache software in European enterprises, especially in sectors like finance, telecommunications, and manufacturing, the risk of exploitation is notable. The absence of known exploits currently provides a window for proactive mitigation, but the potential impact on confidentiality and integrity justifies urgent attention.

The primary mitigation is to upgrade Apache StreamPark to version 2.1.7 or later, where the hard-coded key issue has been resolved. Organizations should audit their current deployments to identify any instances of vulnerable versions. Beyond upgrading, it is critical to implement secure cryptographic key management practices: keys should be generated dynamically, stored securely using hardware security modules (HSMs) or secure vaults, and rotated regularly. Conduct code reviews and static analysis to detect any other instances of hard-coded secrets. Restrict access to software binaries and source code repositories to minimize the risk of key extraction. Implement monitoring and anomaly detection to identify unauthorized decryption attempts or suspicious data access patterns. Finally, ensure that incident response plans include scenarios involving cryptographic key compromise to enable rapid containment and remediation.