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Linux Distros Unpatched Vulnerability : CVE-2026-46595

critical Nessus Plugin ID 316589

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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.

 - Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of callback is passed other than public key, then the source-address validation would be skipped. (CVE-2026-46595)

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

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-46595

https://security-tracker.debian.org/tracker/CVE-2026-46595

https://ubuntu.com/security/CVE-2026-46595

Plugin Details

Severity: Critical

ID: 316589

File Name: unpatched_CVE_2026_46595.nasl

Version: 1.5

Type: Local

Agent: unix

Family: Misc.

Published: 5/25/2026

Updated: 6/15/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.4

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

CVSS Score Source: CVE-2026-46595

CVSS v3

Risk Factor: Critical

Base Score: 10

Temporal Score: 9.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:golang-docs, p-cpe:/a:redhat:enterprise_linux:golang-src, p-cpe:/a:canonical:ubuntu_linux:google-guest-agent, p-cpe:/a:centos:centos:golang-docs, cpe:/o:debian:debian_linux:12.0, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:gvisor-tap-vsock-gvforwarder, p-cpe:/a:canonical:ubuntu_linux:snapd, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:golang-go.crypto, p-cpe:/a:debian:debian_linux:golang-go.crypto, p-cpe:/a:redhat:enterprise_linux:golang, p-cpe:/a:redhat:enterprise_linux:golang-bin, cpe:/o:redhat:enterprise_linux:8, cpe:/o:debian:debian_linux:13.0, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:redhat:enterprise_linux:go-toolset, p-cpe:/a:centos:centos:golang-race, p-cpe:/a:centos:centos:golang-misc, p-cpe:/a:centos:centos:golang-src, p-cpe:/a:centos:centos:golang, p-cpe:/a:centos:centos:golang-bin, p-cpe:/a:redhat:enterprise_linux:golang-tests, p-cpe:/a:centos:centos:golang-tests, p-cpe:/a:redhat:enterprise_linux:golang-misc, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:redhat:enterprise_linux:golang-race, p-cpe:/a:canonical:ubuntu_linux:lxd, p-cpe:/a:redhat:enterprise_linux:gvisor-tap-vsock, p-cpe:/a:centos:centos:gvisor-tap-vsock-gvforwarder, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:go-toolset, p-cpe:/a:centos:centos:gvisor-tap-vsock

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: 5/22/2026

Reference Information

CVE: CVE-2026-46595