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Advisory severityMedium6.5Red Hat Linux

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 Red Hat build of Quarkus 3.27.4.SP2, Red Hat build of Quarkus 3.33.2.SP2, Cryostat 4.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-54518 Source published Source updated

VulniPulse record published Record updated

CVE-2026-54518
Affected products & platforms
Red Hat LinuxUnclassified
Open source advisory

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.

Is CVE-2026-54518 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-54518 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-54518?

Upgrade to a fixed release named by Red Hat:

  • 2.21.4
  • 3.1.4
  • com.fasterxml.jackson.core/jackson-databind:2.21.4.redhat-00002
  • RHSA-2026:36002
  • RHSA-2026:36013

Confirm against the vendor advisory before you patch.

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 14 days ago·verify at source

Fixed versions
  • 2.21.4
  • 3.1.4
  • com.fasterxml.jackson.core/jackson-databind:2.21.4.redhat-00002
  • RHSA-2026:36002
  • RHSA-2026:36013

Official advisory · high-confidence parse· fetched 14 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation
  • 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 14 days ago·verify at source

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