Linux Distros Unpatched Vulnerability : CVE-2026-54514

medium Nessus Plugin ID 322426

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

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 2.0.0 until 2.18.8, 2.21.4, and 3.1.4, JDKFromStringDeserializer constructed InetSocketAddress with new InetSocketAddress(host, port), which performs eager DNS name resolution for hostname inputs at deserialization time. An application that binds untrusted JSON into a type containing an InetSocketAddress field issues an attacker-chosen DNS query during readValue, before any application- level validation or connect logic. The fix uses InetSocketAddress.createUnresolved(host, port), deferring DNS to an explicit connect. This vulnerability is fixed in 2.18.8, 2.21.4, and 3.1.4. (CVE-2026-54514)

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

Solution

There is no known solution at this time.

Plugin Details

Severity: Medium

ID: 322426

File Name: unpatched_CVE_2026_54514.nasl

Version: 1.4

Type: Local

Agent: unix

Family: Misc.

Published: 6/24/2026

Updated: 7/13/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-54514

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:jackson-databind, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:idm-pki-tools, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:idm-pki-ca, p-cpe:/a:centos:centos:idm-pki-acme, p-cpe:/a:redhat:enterprise_linux:idm-pki-tools, p-cpe:/a:centos:centos:idm-pki-server, p-cpe:/a:centos:centos:jackson-databind, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:python3-idm-pki, p-cpe:/a:centos:centos:idm-pki-base, p-cpe:/a:redhat:enterprise_linux:idm-pki-java, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:jackson-databind-javadoc, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:idm-pki-kra, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:jackson-databind, p-cpe:/a:canonical:ubuntu_linux:jackson-databind, p-cpe:/a:redhat:enterprise_linux:idm-pki-kra, p-cpe:/a:centos:centos:idm-pki-java, p-cpe:/a:redhat:enterprise_linux:idm-pki-acme, p-cpe:/a:redhat:enterprise_linux:pki-jackson-databind, p-cpe:/a:redhat:enterprise_linux:idm-pki-base, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:redhat:enterprise_linux:jackson-databind-javadoc, p-cpe:/a:centos:centos:python3-idm-pki, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:idm-pki-server, p-cpe:/a:centos:centos:idm-pki-ca, p-cpe:/a:centos:centos:pki-jackson-databind

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/23/2026

Reference Information

CVE: CVE-2026-54514

Detections

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