Apache StreamPark, a popular framework for building streaming applications, has issued a critical security advisory regarding two major vulnerabilities in its encryption mechanisms. The first, CVE-2025-54947, involves the use of a hard-coded encryption key in versions 2.0.0 through 2.1.7. This fixed key, embedded in the software, can be extracted through reverse engineering, allowing attackers to decrypt sensitive data or forge authentication tokens. This flaw effectively turns the encryption into a "lock with a master key" that anyone can find, compromising the security of all affected installations. The second vulnerability, CVE-2025-54981, exposes the use of the AES cipher in ECB (Electronic Codebook) mode. This encryption mode is inherently insecure because it doesn’t use an initialization vector (IV), making data patterns recognizable and easier to break. Combined with a weak random number generator, this vulnerability increases the risk of exposing sensitive authentication data, such as JWT tokens. Administrators are strongly urged to upgrade to Apache StreamPark version 2.1.7 or later to address these vulnerabilities. The flaws could have severe implications, particularly for cloud environments, where sensitive data is commonly processed and stored. To mitigate similar issues in the future, Apache StreamPark should consider implementing secure key management practices and transitioning to stronger encryption modes like AES-GCM. This advisory serves as a reminder of the importance of maintaining robust cryptographic standards in real-time data processing platforms.
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