CVE-2026-54518: CWE-863: Incorrect Authorization in FasterXML jackson-databind
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.
AI Analysis
Technical Summary
The vulnerability in jackson-databind occurs in the UnwrappedPropertyHandler.processUnwrappedCreatorProperties() method, which replays buffered JSON into creator parameters without consulting the visibility restrictions imposed by @JsonView annotations. While the normal property-based creator path enforces these view-based visibility checks, the unwrapped-creator replay path does not, allowing an attacker to supply JSON that populates constructor parameters that should be restricted. This can lead to unauthorized data binding and potential information disclosure or integrity issues. The flaw affects versions before 2.21.4 and 3.1.4 and has been addressed in those fixed releases.
Potential Impact
An attacker can bypass JSON view-based authorization controls to populate constructor parameters that should be restricted, potentially leading to unauthorized data manipulation or exposure. The impact is limited to confidentiality and integrity with no availability impact. The CVSS score of 6.5 reflects a medium severity vulnerability exploitable remotely without privileges or user interaction.
Mitigation Recommendations
This vulnerability is fixed in jackson-databind versions 2.21.4 and 3.1.4. Users should upgrade to these versions or later to remediate the issue. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory stating fixes in these versions.
CVE-2026-54518: CWE-863: Incorrect Authorization in FasterXML jackson-databind
Description
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.
CVSS v3.1
Score 6.5medium
Affected software
pkg:maven/com.fasterxml.jackson.core/jackson-databindRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in jackson-databind occurs in the UnwrappedPropertyHandler.processUnwrappedCreatorProperties() method, which replays buffered JSON into creator parameters without consulting the visibility restrictions imposed by @JsonView annotations. While the normal property-based creator path enforces these view-based visibility checks, the unwrapped-creator replay path does not, allowing an attacker to supply JSON that populates constructor parameters that should be restricted. This can lead to unauthorized data binding and potential information disclosure or integrity issues. The flaw affects versions before 2.21.4 and 3.1.4 and has been addressed in those fixed releases.
Potential Impact
An attacker can bypass JSON view-based authorization controls to populate constructor parameters that should be restricted, potentially leading to unauthorized data manipulation or exposure. The impact is limited to confidentiality and integrity with no availability impact. The CVSS score of 6.5 reflects a medium severity vulnerability exploitable remotely without privileges or user interaction.
Mitigation Recommendations
This vulnerability is fixed in jackson-databind versions 2.21.4 and 3.1.4. Users should upgrade to these versions or later to remediate the issue. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory stating fixes in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-15T18:40:01.650Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3b008ceed863c81eac1611
Added to database: 06/23/2026, 21:54:20 UTC
Last enriched: 06/30/2026, 23:15:58 UTC
Last updated: 08/07/2026, 00:41:15 UTC
Views: 212
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