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CVE-2026-54512 jackson-databind: PolymorphicTypeValidator bypass via generic type parameters allows arbitrary class instantiation

🗓️ 23 Jun 2026 20:56:36Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 5 Views

CVE-2026-54512: Jackson datbind PTV bypass allows class instantiation via generic parameters; fixed in 2.18.8, 2.21.4, 3.1.4.

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Affected
Refs
[
  {
    "vendor": "FasterXML",
    "product": "jackson-databind",
    "versions": [
      {
        "version": ">= 2.10.0, < 2.18.8",
        "status": "affected"
      },
      {
        "version": ">= 2.19.0, < 2.21.4",
        "status": "affected"
      },
      {
        "version": ">= 3.0.0, < 3.1.4",
        "status": "affected"
      }
    ]
  }
]

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