External risk intelligence

Apache StreamPark Hardcoded Key Information Disclosure

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2025-54947

Apache StreamPark is a streaming data management platform typically deployed as a centralized web-based application. Such platforms are commonly exposed as internet-facing management interfaces or web portals to facilitate remote access for data engineering teams, making the web service and its underlying encryption configurations reachable in many standard deployment environments.

Information Disclosure

Apache Streampark

2.0.0 to before 2.1.7

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A security vulnerability has been identified in Apache StreamPark, a platform for managing streaming data. The issue stems from the use of a hard-coded encryption key, which could allow unauthorized parties to decrypt sensitive information or gain access to the system.

Hard-coded encryption key is insecure.
Sensitive data exposure or unauthorized access is possible.
Confirm relevance and exposure to sensitive data.

Attack Path

How an attacker could exploit the issue

An attacker could begin by analyzing the Apache StreamPark application to uncover a hard-coded encryption key. With this key, they might then decrypt sensitive user data or forge encrypted information to gain unauthorized access to the system.

Exposure of hard-coded encryption key.
Key obtained via code analysis.
Leads to data disclosure or system access.

Live Threat

Current exploitation, exposure, and threat context

When supported by the advisory, this vulnerability could allow attackers to decrypt sensitive data or forge encrypted information by obtaining a hard-coded encryption key. This may lead to information disclosure or unauthorized system access.

Sensitive data and system access.
Key obtained via code analysis.
Information disclosure or unauthorized access.

Operational Fix

Recommended remediation, mitigation, and detection steps

Security teams should prioritize identifying all Apache StreamPark deployments to assess their exposure and criticality. Once identified, the accountable team, likely platform or application owners, should verify the version and plan for an upgrade, coordinating with any vendor-management teams if applicable.

Platform or application owners must address.
Confirm StreamPark version and reachability.
Plan upgrade or mitigate risks.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is Apache StreamPark?

Apache StreamPark is a specialized platform designed to simplify the management, development, and operation of streaming data pipelines. It serves as a centralized web-based interface where data engineering teams configure and monitor complex stream processing tasks. Because it acts as a unified hub for streaming infrastructure, it often stores sensitive configuration details and credentials required to connect to various data sources and sinks.

What does CVE-2025-54947 mean by hard-coded encryption key?

This vulnerability, classified as CWE-321 and CWE-798, refers to the practice of embedding a permanent, unchangeable cryptographic key directly into the application's source code. Instead of generating a unique, secure key when the software is installed, the system relies on this static value for all encryption tasks. Because the key is constant, anyone who reverse-engineers the application can discover it and use it to decrypt sensitive data or manipulate encrypted messages.

How does an attacker trigger this vulnerability?

An attacker triggers this flaw by obtaining the hard-coded key through static analysis or reverse engineering of the Apache StreamPark codebase. Once the key is recovered, the attacker can then target the application's encrypted communications or stored data. Importantly, this issue does not require the attacker to bypass authentication protocols or exploit a complex memory error; it is fundamentally an issue of cryptographic design where the secret is already known to anyone with access to the code.

Why is this a high-priority risk for my infrastructure?

Halo Surface Signal indicates that Apache StreamPark is typically deployed as a centralized web portal, often making the management interface accessible over the network. Because the application is designed for remote access by data teams, these interfaces are frequently exposed, increasing the likelihood that an attacker could reach the service and leverage the discovered encryption key to intercept or forge sensitive system data.

How do I secure my Apache StreamPark installation?

Your first step is to inventory all running instances of Apache StreamPark to identify which are currently on versions 2.0.0 through 2.1.6. If you find affected instances, you should prioritize upgrading them to version 2.1.7 or later. This update addresses the underlying flaw by moving away from the hard-coded key configuration. Coordinate with your platform or application owners to schedule this update and verify the patch version.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.