A critical security vulnerability has been discovered in Apache StreamPark that could allow attackers to access sensitive data by exploiting a hard-coded encryption key.
The vulnerability, identified as CVE-2025-54947, affects multiple versions of the popular stream-processing platform and poses significant risks to organizations running those versions.
The vulnerability stems from a fundamental cryptographic flaw: Apache StreamPark uses a fixed, immutable encryption key rather than implementing dynamic key generation or secure configuration mechanisms.
This design weakness allows threat actors to obtain the encryption key through reverse engineering or direct code analysis, potentially compromising the confidentiality and integrity of encrypted data stored within the system.
Vulnerability Details
The hard-coded encryption key vulnerability impacts Apache StreamPark versions 2.0.0 through 2.1.6, creating a window of exposure for organizations operating these versions in production environments.
Once attackers obtain the encryption key, they can decrypt sensitive information or forge encrypted data without authentication, resulting in unauthorized system access and potential data breaches.
The severity rating of “Important” reflects the seriousness of this vulnerability, as it directly compromises the encryption mechanisms that protect sensitive data.
Organizations relying on StreamPark for stream processing workflows should treat this issue with urgency, given the potential for widespread data exposure.
Apache has addressed this vulnerability in version 2.1.7, which implements proper encryption key management practices.
The Apache StreamPark project recommends that all users running affected versions immediately upgrade to the patched release.
Organizations should prioritize this update, particularly those handling sensitive or regulated data through StreamPark deployments.
The discovery was responsibly reported by security researcher Omkar Parth, who identified the vulnerability and worked with the Apache team to develop and release the fix.
This responsible disclosure process ensures organizations have proper notice and remediation options before broader public awareness of the vulnerability.
| Field | Details |
|---|---|
| CVE ID | CVE-2025-54947 |
| Affected Software | Apache StreamPark |
| Affected Versions | 2.0.0 through 2.1.6 |
| Vulnerability Type | Hard-coded Encryption Key |
| Severity | Important |
| Impact | Information Disclosure, Unauthorized Access |
| Fixed Version | 2.1.7 and later |
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