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Debian dsa-6207 : flatpak - security update

critical Nessus Plugin ID 307634

Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6207 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6207-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 12, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : flatpak CVE ID : CVE-2026-34078 CVE-2026-34079

 Multiple security vulnerabilities were discovered in Flatpak, an application deployment framework for desktop apps, which could allow a Flatpak app to delete arbitrary hosts on the host or break out of the sandbox resulting in code execution in the host context.

 For the stable distribution (trixie), these problems have been fixed in version 1.16.6-1~deb13u1.

 We recommend that you upgrade your flatpak packages.

 For the detailed security status of flatpak please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/flatpak

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the flatpak packages.

See Also

https://security-tracker.debian.org/tracker/source-package/flatpak

https://security-tracker.debian.org/tracker/CVE-2026-34078

https://security-tracker.debian.org/tracker/CVE-2026-34079

https://packages.debian.org/source/trixie/flatpak

Plugin Details

Severity: Critical

ID: 307634

File Name: debian_DSA-6207.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/20/2026

Updated: 4/20/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-34079

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:H/A:N

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

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.1

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2026-34078

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:flatpak-tests, p-cpe:/a:debian:debian_linux:flatpak, p-cpe:/a:debian:debian_linux:libflatpak0, p-cpe:/a:debian:debian_linux:libflatpak-doc, p-cpe:/a:debian:debian_linux:gir1.2-flatpak-1.0, p-cpe:/a:debian:debian_linux:libflatpak-dev, cpe:/o:debian:debian_linux:13.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/12/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-34078, CVE-2026-34079

IAVA: 2026-A-0317