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AlmaLinux 9 : flatpak-builder (ALSA-2026:80496)

high Nessus Plugin ID 365608

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Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 9 host has a package installed that is affected by a vulnerability as referenced in the ALSA-2026:80496 advisory.

 * flatpak-builder: Host code execution via `git am` hook execution in patch source extraction (`use-git- am`) (CVE-2026-86320)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 flatpak-builder package.

See Also

https://access.redhat.com/errata/RHSA-2026:80496

https://errata.almalinux.org/9/ALSA-2026-80496.html

Plugin Details

Severity: High

ID: 365608

File Name: alma_linux_ALSA-2026-80496.nasl

Version: 1.1

Type: Local

Published: 10/14/2026

Updated: 10/14/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.29

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-86320

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:flatpak-builder

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/12/2026

Vulnerability Publication Date: 9/16/2026

Reference Information

CVE: CVE-2026-86320

CWE: 94

RHSA: 2026:80496