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Linux Distros Unpatched Vulnerability : CVE-2026-123037

medium Nessus Plugin ID 377113

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.

 - A flaw was found in the ansible-core user module. When generate_ssh_key is enabled, User.ssh_key_gen() guards the key files against symlinks but checks the ~/.ssh directory only with os.path.exists(). An unprivileged user on a managed node who replaces their ~/.ssh with a symlink to an existing root-writable directory causes the privileged module to write the generated key pair through the symlink and then chown both files to that user. Because such files can be dropped into directories processed by schedulers (e.g.
 /etc/cron.daily) or dynamic MOTD (/etc/update-motd.d), the user can escalate to root on the managed node.
 This is an incomplete fix of CVE-2024-9902. (CVE-2026-123037)

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-2026-123037

Plugin Details

Severity: Medium

ID: 377113

File Name: unpatched_CVE_2026_123037.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Misc.

Published: 11/6/2026

Updated: 11/6/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.53

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.9

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

CVSS Score Source: CVE-2026-123037

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 6.1

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

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

Vulnerability Information

CPE: cpe:/a:redhat:enterprise_linux:10, cpe:/a:redhat:enterprise_linux:8, cpe:/a:redhat:enterprise_linux:9, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:ansible-core, p-cpe:/a:centos:centos:ansible-test, p-cpe:/a:redhat:enterprise_linux:ansible-core, p-cpe:/a:redhat:enterprise_linux:ansible-test

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 11/6/2026

Reference Information

CVE: CVE-2026-123037