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CVE-2025-55039 Apache Spark, Apache Spark: RPC encryption defaults to unauthenticated AES-CTR mode, enabling man-in-the-middle ciphertext modification attacks

🗓️ 15 Oct 2025 07:19:25Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

CVE-2025-55039 affects Spark versions before 3.4.4, 3.5.2, 4.0.0; insecure RPC encryption allows tampering; fix with transport security or authenticated encryption.

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15 Jul 2026 01:49Current
7.1High risk
Vulners AI Score7.1
CVSS 3.16.5
EPSS0.0022
3