Medium [CVE-2026-54518] Information disclosure and data manipulation via view-based access control bypass
This medium-severity Red Hat Linux advisory covers CVE-2026-54518 affecting Cryostat 4, OpenShift Developer Tools and Services, OpenShift Serverless.
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Summary
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. This vulnerability allows a remote attacker to bypass security view restrictions by sending specially crafted JSON (JavaScript Object Notation) data.
The UnwrappedPropertyHandler component, which processes unwrapped properties, incorrectly populates constructor parameters that should be hidden by an active security view. This can lead to unauthorized information disclosure or data manipulation.
When processing unwrapped creator properties, the component fails to properly enforce @JsonView annotations, enabling sensitive constructor parameters to be populated from untrusted JSON data. Red Hat severity: Moderate — CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).
Weakness: CWE-639.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
- 2.21.4
- 3.1.4
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 15 days ago·verify at source
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