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Spring Boot ClassLoader Reflection RCE via Deserialization (CVE-2021-42569) Analysis & POC

github.com 2026-10-19 查看中文 →
Security Advisory CVE-2021-42569 Critical Spring
Affected:
  • spring-boot < 2.4.12
  • spring-boot >= 2.5.0 < 2.5.12
  • spring-boot >= 2.6.0 < 2.6.4
Fixed in:
  • 2.4.12
  • 2.5.12
  • 2.6.4
Referenced CVEs: CVE-2026-112081 · 6.3
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