GitHub Advisoryadvisory · Maven
GHSA-rcqc-6cw3-h962 jackson-databind has a @JsonView bypass for unwrapped creator parameters
MEDIUM
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
- https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rcqc-6cw3-h962 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-54518 advisory
- https://github.com/FasterXML/jackson-databind/pull/5971 web
- https://github.com/FasterXML/jackson-databind/pull/5973 web
- https://github.com/FasterXML/jackson-databind/commit/721fa07ebbd4aab4a659a1a68940878315c3e341 web
- https://github.com/FasterXML/jackson-databind/commit/d633bc038f200c1397c07f1a2b46f58e72c91eea web
- https://github.com/FasterXML/jackson-databind package