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Oracle Linux 9 : osbuild-composer (ELSA-2026-9044)

high Nessus Plugin ID 309209

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-9044 advisory.

 [149-5.0.1]
 - Add missing dependency over dracut-config-rescue for image-installer [ORABUG: 38587453]
 - Switch to UEKR8 repositories for OL9.6 [Orabug: 37962207]
 - Add support to create OpenScap images [JIRA: OLDIS-35301]
 - Simplify repository names [JIRA: OLDIS-35893]
 - Refactor patches to fix some naming and set a correct kernel for Oracle Linux [Orabug: 37253643]
 - Support using OCI variables inside built images [JIRA: OLDIS-35302]
 - Support using repository definitons with OCI variables [JIRA: OLDIS-38657]
 - Update repositories to contain OCI variables
 - Remove image types Minimal-raw and wsl [JIRA: OLDIS-38123]
 - Increase default /boot size to 1GB [Orabug: 36827079]
 - Add support for OCI hybrid images [JIRA: OLDIS-33593]
 - enable aarch64 OCI image builds [JIRA: OLDIS-33593]
 - support for building OL8/9 images on Oracle Linux 9 [Orabug: 36400619]

 [149-5]
 - Rebuilt to fix:
 - CVE-2026-25679
 - CVE-2026-27137
 - RHEL-158741
 - RHEL-158860

Tenable has extracted the preceding description block directly from the Oracle 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 osbuild-composer, osbuild-composer-core and / or osbuild-composer-worker packages.

See Also

https://linux.oracle.com/errata/ELSA-2026-9044.html

Plugin Details

Severity: High

ID: 309209

File Name: oraclelinux_ELSA-2026-9044.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/22/2026

Updated: 4/22/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2026-25679

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:osbuild-composer-core, p-cpe:/a:oracle:linux:osbuild-composer, cpe:/o:oracle:linux:9, p-cpe:/a:oracle:linux:osbuild-composer-worker

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/21/2026

Vulnerability Publication Date: 3/5/2026

Reference Information

CVE: CVE-2026-25679

IAVB: 2026-B-0055-S