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Threat Intelligence Report

A Series of Information Leakage Incidents Involving Web Systems

📅 October 7, 2026 📰 security.macnica.co.jp 🔍 7 CVE(s) referenced

A sharp surge in indiscriminate breaches of Japanese web systems suggests attackers may be rapidly exploiting basic API, access-control, authentication, and configuration flaws at scale—potentially with AI assistance—to harvest personal data for future fraud.

unclassified
CVE-2021-20717, CVE-2024-4577, CVE-2021-20837, CVE-2025-55182, CVE-2026-60137, CVE-2026-63030, CVE-2017-5638

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