PT-2026-51596 · Fasterxml · Jackson-Databind

Publicado 2026-06-23 · Atualizado 2026-06-23 · CVE-2026-54513

NVD

CVSS v3.1

8.1

Alta

Vetor base

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.10.0 until 2.18.8, 2.21.4, and 3.1.4, BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() allowlists any array type based only on clazz.isArray(), without validating the array's component (element) type against the configured allowlist. A PTV built with allowIfSubTypeIsArray() plus an explicit concrete-type allowlist therefore still permits EvilType[] even though EvilType is not allowlisted. When Jackson deserializes the elements and no per-element type IDs are present, it instantiates the component type directly with no further PTV check, bypassing the allowlist. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4.

Correção

Incomplete List of Disallowed Inputs

Enumeração de Fraquezas

CWE-184

Identificadores relacionados

CVE-2026-54513

Produtos afetados

Jackson-Databind

Referências · 7

• https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rmj7-2vxq-3g9f · Nota
• https://github.com/FasterXML/jackson-databind/issues/5981 · Nota
• https://github.com/FasterXML/jackson-databind/commit/24529da29fdf46ff94ca38de9ebf31cd188f5e8e · Nota
• https://github.com/FasterXML/jackson-databind/pull/5984 · Nota
• https://github.com/FasterXML/jackson-databind/commit/01d1692c8d0ed03e51a0e3c4f8a9e6908e4931e5 · Nota
• https://github.com/FasterXML/jackson-databind/issues/5983 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-54513 · Nota de Segurança