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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-54518)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 0cb401f9-9f19-11f1-a655-3497f65b111b advisory.

    The Jackson project reports:
    PolymorphicTypeValidator needs to validate generic type               parameters too     BasicPolymorphicTypeValidator setting allowIfSubTypeIsArray()               should validate element type     Add java.lang.Comparable in set of unsafe polymorphic base               types     @JsonView by-passed for @JsonUnwrapped Field/Setter               properties     @JsonView by-passed for some setterless creator               properties     @JsonView by-passed for unwrapped creator parameters     Honor @JsonView for external-type-id (EXTERNAL_PROPERTY)               properties     Renamed @JsonIgnore'd setters can deserialize via private               fields     @JsonIgnore on Record property ignored with               PropertyNamingStrategy     Case-insensitive deserialization may use wrong               @JsonIgnoreProperties     Do not allow DNS resolution when deserializing               InetAddress     Improve InetSocketAddress deserialization     Limit the supported URL schemes for java.nio.file.Path               deserialization     Add StreamReadConstraints number len constraint to               javax.xml.datatype.XMLGregorianCalendar and               javax.xml.datatype.Duration

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 45 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-ddde3cf003 advisory.

    Rebase to 2.21.5 to solve the CVE-2026-54518, CVE-2026-54517, CVE-2026-54516, CVE-2026-54515,     CVE-2026-54513, CVE-2026-54512

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-54518)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
464769	Echo: com.fasterxml.jackson.core:jackson-databind: security update to 2.21.4tools.jackson.core:jackson-databind: security update to 3.1.4	Tenable Cloud Security	Echo Local Security Checks	Local	medium
464769	Echo: com.fasterxml.jackson.core:jackson-databind: security update to 2.21.4tools.jackson.core:jackson-databind: security update to 3.1.4	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
339070	FreeBSD : jackson-databind -- multiple vulnerabilities (0cb401f9-9f19-11f1-a655-3497f65b111b)	Nessus	FreeBSD Local Security Checks	Local	high
326919	Fedora 45 : fasterxml-oss-parent / jackson-annotations / jackson-bom / etc (2026-ddde3cf003)	Nessus	Fedora Local Security Checks	Local	high
443853	SCA: security update for com.fasterxml.jackson.core:jackson-databind, tools.jackson.core:jackson-databind (GHSA-rcqc-6cw3-h962)	Tenable Cloud Security	SCA Checks	Local	medium
443853	SCA: security update for com.fasterxml.jackson.core:jackson-databind, tools.jackson.core:jackson-databind (GHSA-rcqc-6cw3-h962)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
322433	Linux Distros Unpatched Vulnerability : CVE-2026-54518	Nessus	Misc.	Local	medium

Detections

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CVE-2026-54518

medium

Tenable Plugins

medium

medium

high

high

medium

medium

medium