GitHub Advisoryadvisory · Maven

GHSA-rcqc-6cw3-h962 jackson-databind has a @JsonView bypass for unwrapped creator parameters

MEDIUM Published 2026-06-23 Modified 2026-07-20 Official page ↗
Aliases
CVE-2026-54518
Ecosystem
Maven
Packages
com.fasterxml.jackson.core:jackson-databind, tools.jackson.core:jackson-databind
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-863
Reviewed
2026-06-23

Affected packages

• Maven com.fasterxml.jackson.core:jackson-databind: >= 2.21.0, < 2.21.4 → fixed in 2.21.4 • Maven tools.jackson.core:jackson-databind: >= 3.0.0, < 3.1.4 → fixed in 3.1.4

Description

Summary `UnwrappedPropertyHandler.processUnwrappedCreatorProperties()` replays buffered JSON into creator parameters but never consults `prop.visibleInView(activeView)`. The normal property-based creator path gates creator properties on the active view, but this unwrapped-creator replay path bypasses that check, so a constructor parameter annotated with both `@JsonView(AdminView.class)` and `@JsonUnwrapped` is populated from attacker JSON even when a more restrictive view is active. Impact View-restricted unwrapped creator parameters can be set from untrusted input where `@JsonView` is used as a write-side authorization boundary. Affected / Patched (verified via `git tag --contains`) • 2.21 line: `>= 2.21.0, fixed in 2.21.4 (backport `721fa07`, #5973) • 3.x line: `>= 3.0.0, fixed in 3.1.4 (#5971, `d633bc0`) Severity / CWE Maintainer: minor. Reporter: HIGH. CWE-863 (Incorrect Authorization); related CWE-284. Credits Omkhar Arasaratnam (@omkhar) - finder.

Related

Alias · CVE (1)

  • CVE-2026-54518 jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. vulnerability

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References