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jackson-databind polymorphic deserialization RCE & 2.18.9 fix analysis

github.com 2026-09-02 查看中文 →

Security Advisory Unknown FasterXML

Affected:

jackson-databind 2.18.9 and earlier

Fixed in:

2.18.9

Referenced CVEs: CVE-2026-83557 · 5.6

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