jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines, the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName() on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2081 advisory.

    jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data     Processor. From 2.15.0 until 2.18.8, 2.21.4, and 3.1.4, Java Records using a PropertyNamingStrategy can     bypass @JsonIgnore because POJOPropertiesCollector._removeUnwantedIgnorals() records an ignored component     under its original implicit name before _renameUsing() applies the naming strategy, allowing the renamed     JSON key to be assigned to the Record constructor parameter. This issue is fixed in versions 2.18.8,     2.21.4, and 3.1.4. (CVE-2026-59888)

    jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data     Processor. From 2.18.0 until 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1,     UnwrappedPropertyHandler.processUnwrapped() replays buffered JSON for a @JsonUnwrapped property and calls     prop.deserializeAndSet() without a prop.visibleInView(ctxt.getActiveView()) guard, allowing a property     annotated with both @JsonView and @JsonUnwrapped to be written from attacker JSON under a less-privileged     active view. This issue is fixed in versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1. (CVE-2026-59889)

    jackson-databind contains the general-purpose data-binding functionality and tree-model for Jackson Data     Processor. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines,     the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName()     on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based     server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5,     2.22.1, 3.1.5, and 3.2.1. (CVE-2026-77310)

Tenable has extracted the preceding description block directly from the tested product 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. Prior to versions 2.18.9, 2.21.5, 2.22.1, 3.1.5, and 3.2.1 on their respective release lines,     the java.net.InetAddress branch of FromStringDeserializer.Std._deserialize() calls InetAddress.getByName()     on attacker-controlled input, causing eager DNS resolution during deserialization and enabling DNS-based     server-side request forgery and internal-host enumeration. This issue is fixed in versions 2.18.9, 2.21.5,     2.22.1, 3.1.5, and 3.2.1. (CVE-2026-77310)

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

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.

ID	Name	Product	Family	Type	Severity
341908	Amazon Linux 2023 : jackson-databind (ALAS2023-2026-2081)	Nessus	Amazon Linux Local Security Checks	Local	medium
341754	Linux Distros Unpatched Vulnerability : CVE-2026-77310	Nessus	Misc.	Local	medium
339070	FreeBSD : jackson-databind -- multiple vulnerabilities (0cb401f9-9f19-11f1-a655-3497f65b111b)	Nessus	FreeBSD Local Security Checks	Local	high

Detections

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CVE-2026-77310

medium

Tenable Plugins

medium

medium

high