SecBoard
Zurück zur CVE-Übersicht

CVE-2026-54513

HIGH(8.1)

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Risk Signal Score21/100 — NIEDRIG
  • CVSS 8.1 — Hoch

Erwähnungen (letzte 60 Tage)

Artikel

EPSS-Score

0.9%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

8.1

Technische Schwere

Beschreibung

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.

Betroffene Produkte

  • cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*
  • cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*
  • cpe:2.3:a:fasterxml:jackson-databind:*:*:*:*:*:*:*:*

GitHub Advisories

GHSA-rmj7-2vxq-3g9fHIGH

jackson-databind has an array subtype allowlist bypass in BasicPolymorphicTypeValidator (allowIfSubTypeIsArray)

maven/com.fasterxml.jackson.core:jackson-databind→ 2.18.8
GitHub Advisory

Referenzen