CentOS 9 : openssh-9.9p1-10.el9

critical Nessus Plugin ID 328035

Synopsis

The remote CentOS host is missing one or more security updates for openssh.

Description

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the openssh-9.9p1-10.el9 build changelog.

- Fix use-after-free in cached hostkey during key re-exchange (CVE-2026-60002)

- Fix remote glob result of .. causing files to be placed in unintended parent directories when scp performs remote-to-remote copy via the local host (CVE-2026-59996)

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

Solution

Update the CentOS 9 Stream openssh package.

See Also

https://kojihub.stream.centos.org/koji/buildinfo?buildID=118870

Plugin Details

Severity: Critical

ID: 328035

File Name: centos9_openssh-9_9p1-10_118870.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 7/20/2026

Updated: 7/20/2026

Supported Sensors: Agentless Assessment, Continuous 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: Medium

Score: 4.5

Percentile: 57.61

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.2

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

CVSS Score Source: CVE-2026-60002

CVSS v3

Risk Factor: Critical

Base Score: 9.4

Temporal Score: 8.2

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

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

Vulnerability Information

CPE: cpe:/a:centos:centos:9, p-cpe:/a:centos:centos:openssh-askpass, p-cpe:/a:centos:centos:openssh-clients, p-cpe:/a:centos:centos:openssh-keycat, p-cpe:/a:centos:centos:openssh-server, p-cpe:/a:centos:centos:openssh-sk-dummy, p-cpe:/a:centos:centos:openssh, p-cpe:/a:centos:centos:pam_ssh_agent_auth

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/8/2026

Reference Information

CVE: CVE-2026-59996, CVE-2026-60002

IAVA: 2026-A-0691