Detections
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RockyLinux 8 : openssh (RLSA-2026:13383)

high Nessus Plugin ID 312327

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13383 advisory.

 * OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not preserving file mode (CVE-2026-35385)

 * OpenSSH: OpenSSH: Security bypass via mishandling of authorized_keys principals option (CVE-2026-35414)

 * OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage (CVE-2026-35387)

 * OpenSSH: OpenSSH: Low integrity impact from unconfirmed proxy-mode multiplexing sessions (CVE-2026-35388)

 * OpenSSH: OpenSSH: Arbitrary command execution via shell metacharacters in username (CVE-2026-35386)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

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 affected packages.

See Also

https://errata.rockylinux.org/RLSA-2026:13383

https://bugzilla.redhat.com/show_bug.cgi?id=2454469

https://bugzilla.redhat.com/show_bug.cgi?id=2454490

https://bugzilla.redhat.com/show_bug.cgi?id=2454494

https://bugzilla.redhat.com/show_bug.cgi?id=2454500

https://bugzilla.redhat.com/show_bug.cgi?id=2454506

Plugin Details

Severity: High

ID: 312327

File Name: rocky_linux_RLSA-2026-13383.nasl

Version: 1.1

Type: Local

Published: 5/6/2026

Updated: 5/6/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-35414

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:8, p-cpe:/a:rocky:linux:openssh, p-cpe:/a:rocky:linux:openssh-askpass, p-cpe:/a:rocky:linux:openssh-askpass-debuginfo, p-cpe:/a:rocky:linux:openssh-cavs, p-cpe:/a:rocky:linux:openssh-cavs-debuginfo, p-cpe:/a:rocky:linux:openssh-clients, p-cpe:/a:rocky:linux:openssh-clients-debuginfo, p-cpe:/a:rocky:linux:openssh-debuginfo, p-cpe:/a:rocky:linux:openssh-debugsource, p-cpe:/a:rocky:linux:openssh-keycat, p-cpe:/a:rocky:linux:openssh-keycat-debuginfo, p-cpe:/a:rocky:linux:openssh-ldap, p-cpe:/a:rocky:linux:openssh-ldap-debuginfo, p-cpe:/a:rocky:linux:openssh-server, p-cpe:/a:rocky:linux:openssh-server-debuginfo, p-cpe:/a:rocky:linux:pam_ssh_agent_auth, p-cpe:/a:rocky:linux:pam_ssh_agent_auth-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/6/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-35385, CVE-2026-35386, CVE-2026-35387, CVE-2026-35388, CVE-2026-35414