Detections
Analytics

Fedora 42 : flatpak-builder (2026-631b9d535c)

high Nessus Plugin ID 310071

Synopsis

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

Description

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-631b9d535c advisory.

 This update includes a fix for [CVE-2026-39977](https://access.redhat.com/security/cve/CVE-2026-39977).
 See also: [the upstream advisory](https://github.com/flatpak/flatpak- builder/security/advisories/GHSA-6gm9-3g7m-3965)

Tenable has extracted the preceding description block directly from the Fedora 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://bodhi.fedoraproject.org/updates/FEDORA-2026-631b9d535c

Plugin Details

Severity: High

ID: 310071

File Name: fedora_2026-631b9d535c.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/24/2026

Updated: 4/24/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

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

CVSS Score Source: CVE-2026-39977

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

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

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 5.7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:42, p-cpe:/a:fedoraproject:fedora:flatpak-builder

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/15/2026

Vulnerability Publication Date: 4/9/2026

Reference Information

CVE: CVE-2026-39977