RHEL 10 : container-selinux and crun (RHSA-2026:47905)

high Nessus Plugin ID 330682

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:47905 advisory.

The container-selinux package provides SELinux policies for container runtimes.

Security Fix(es):

* crun: crun: Privilege escalation due to incorrect parsing of the `--user` option (CVE-2026-30892)

Bug Fix(es) and Enhancement(s):

* [rhel-10.0.z] avc: denied { prog_run } for pid=1 comm=systemd scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:unconfined_r:container_runtime_t:s0 tclass=bpf (JIRA:RHEL-210644)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the affected container-selinux and / or crun packages.

Plugin Details

Severity: High

ID: 330682

File Name: redhat-RHSA-2026-47905.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/29/2026

Updated: 7/29/2026

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: 4.9

Percentile: 57.43

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-30892

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux_eus:10.0, p-cpe:/a:redhat:enterprise_linux:container-selinux, p-cpe:/a:redhat:enterprise_linux:crun

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 3/25/2026

Reference Information

CVE: CVE-2026-30892

CWE: 115

RHSA: 2026:47905

Detections

Analytics