CVE-2026-54518

MEDIUM 6.5

jackson-databind: @JsonView bypass for unwrapped creator parameters in jackson-databind

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. From 2.21.0 until 2.21.4 and 3.1.4, 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. This vulnerability is fixed in 2.21.4 and 3.1.4.

CWE	CWE-863
Vendor	fasterxml
Product	jackson-databind
Published	Jun 23, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

FasterXML / jackson-databind

>= 2.21.0, < 2.21.4 >= 3.0.0, < 3.1.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FasterXML/jackson-databind/security/advisories/GHSA-rcqc-6cw3-h962 github.com: https://github.com/FasterXML/jackson-databind/pull/5971 github.com: https://github.com/FasterXML/jackson-databind/pull/5973 github.com: https://github.com/FasterXML/jackson-databind/commit/721fa07ebbd4aab4a659a1a68940878315c3e341 github.com: https://github.com/FasterXML/jackson-databind/commit/d633bc038f200c1397c07f1a2b46f58e72c91eea