Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Flatpak
  • Flatpak

Configuration 1 [-]

cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/flatpak/flatpak/security/advisories/GHSA-p29x-r292-46pp cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-34079 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-34079 cve-icon
History

Fri, 17 Apr 2026 20:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*

Fri, 10 Apr 2026 21:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L'}

 ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Wed, 08 Apr 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Flatpak
Flatpak flatpak
Vendors & Products Flatpak
Flatpak flatpak

Wed, 08 Apr 2026 12:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.7, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L'}

threat_severity

Moderate

Tue, 07 Apr 2026 22:00:00 +0000

Type Values Removed Values Added
Description Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the caching for ld.so removes outdated cache files without properly checking that the app controlled path to the outdated cache is in the cache directory. This allows Flatpak apps to delete arbitrary files on the host. This vulnerability is fixed in 1.16.4.
Title Flatpak affected by arbitrary file deletion on the host filesystem
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-04-07T21:29:44.601Z

Updated: 2026-04-10T20:13:47.945Z

Reserved: 2026-03-25T16:21:40.868Z

Link: CVE-2026-34079

cve-icon Vulnrichment

Updated: 2026-04-10T20:13:41.649Z

cve-icon NVD

Status : Analyzed

Published: 2026-04-07T22:16:22.080

Modified: 2026-04-17T20:26:32.860

Link: CVE-2026-34079

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-07T21:29:44Z

Links: CVE-2026-34079 - Bugzilla