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Flatpak

11 CVEs product

Monthly

CVE-2026-34079 Apr 07, 21:29 HIGH PATCH This Week

Arbitrary file deletion in Flatpak versions prior to 1.16.4 allows sandboxed applications to delete files on the host system via path traversal during ld.so cache cleanup. The vulnerability stems from improper validation of application-controlled paths when removing outdated cache files, enabling applications to escape sandbox constraints and delete arbitrary host files. No active exploitation or public exploit code is confirmed at time of analysis, though the technical barrier is low given the CVSS vector shows network-accessible attack with low complexity and no authentication required.

Path Traversal Flatpak
NVD GitHub VulDB
CVSS 4.0
8.7
EPSS
0.2%
CVE-2026-34078 Apr 07, 21:27 CRITICAL PATCH Act Now

Sandbox escape in Flatpak versions prior to 1.16.4 allows applications to access arbitrary host filesystem paths and achieve host-level code execution through symlink manipulation in portal sandbox-expose options. The vulnerability requires no authentication (CVSS:4.0 PR:N) and is exploitable over the network with low complexity. No confirmed active exploitation (CISA KEV) or public exploit code identified at time of analysis, though the attack primitive is clearly documented in the vendor advisory.

RCE Flatpak
NVD GitHub VulDB
CVSS 4.0
9.3
EPSS
0.2%
CVE-2023-28101 Mar 16, 16:15 MEDIUM PATCH This Month

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Information Disclosure Flatpak
NVD GitHub
CVSS 3.1
4.3
EPSS
0.9%
CVE-2023-28100 Mar 16, 16:15 MEDIUM PATCH This Month

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity.

Information Disclosure Flatpak
NVD GitHub
CVSS 3.1
6.5
EPSS
0.9%
CVE-2021-41133 Oct 08, 14:15 HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Privilege Escalation Flatpak Debian Linux Fedora
NVD GitHub
CVSS 3.1
7.8
EPSS
0.4%
CVE-2021-21381 Mar 11, 17:15 HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 8.2), this vulnerability is no authentication required, low attack complexity.

Information Disclosure Flatpak Debian Linux Fedora
NVD GitHub
CVSS 3.1
8.2
EPSS
1.5%
CVE-2021-21261 Jan 14, 20:15 HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.

Google RCE Flatpak Debian Linux
NVD GitHub
CVSS 3.1
8.8
EPSS
0.6%
CVE-2019-10063 Mar 26, 14:29 CRITICAL PATCH Act Now

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required.

Authentication Bypass Linux Flatpak
NVD GitHub
CVSS 3.0
9.0
EPSS
1.9%
CVE-2019-8308 Feb 12, 23:29 HIGH This Week

Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.

Information Disclosure Flatpak Debian Linux Enterprise Linux Desktop Enterprise Linux Server +4
NVD GitHub
CVSS 3.0
8.2
EPSS
0.5%
CVE-2018-6560 Feb 02, 14:29 HIGH PATCH This Week

In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.

Information Disclosure Flatpak Enterprise Linux Desktop Enterprise Linux Server Enterprise Linux Server Aus +3
NVD GitHub
CVSS 3.0
8.8
EPSS
0.4%
CVE-2017-9780 Jun 21, 15:29 HIGH PATCH This Week

In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for example setuid or world-writable. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Incorrect Permission Assignment vulnerability could allow attackers to access resources due to misconfigured permissions.

Information Disclosure Flatpak Debian Linux
NVD GitHub
CVSS 3.0
7.8
EPSS
0.0%
EPSS 0% CVSS 8.7
HIGH PATCH This Week

Arbitrary file deletion in Flatpak versions prior to 1.16.4 allows sandboxed applications to delete files on the host system via path traversal during ld.so cache cleanup. The vulnerability stems from improper validation of application-controlled paths when removing outdated cache files, enabling applications to escape sandbox constraints and delete arbitrary host files. No active exploitation or public exploit code is confirmed at time of analysis, though the technical barrier is low given the CVSS vector shows network-accessible attack with low complexity and no authentication required.

Path Traversal Flatpak
NVD GitHub VulDB
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

Sandbox escape in Flatpak versions prior to 1.16.4 allows applications to access arbitrary host filesystem paths and achieve host-level code execution through symlink manipulation in portal sandbox-expose options. The vulnerability requires no authentication (CVSS:4.0 PR:N) and is exploitable over the network with low complexity. No confirmed active exploitation (CISA KEV) or public exploit code identified at time of analysis, though the attack primitive is clearly documented in the vendor advisory.

RCE Flatpak
NVD GitHub VulDB
EPSS 1% CVSS 4.3
MEDIUM PATCH This Month

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable, low attack complexity.

Information Disclosure Flatpak
NVD GitHub
EPSS 1% CVSS 6.5
MEDIUM PATCH This Month

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated medium severity (CVSS 6.5), this vulnerability is low attack complexity.

Information Disclosure Flatpak
NVD GitHub
EPSS 0% CVSS 7.8
HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity.

Privilege Escalation Flatpak Debian Linux +1
NVD GitHub
EPSS 2% CVSS 8.2
HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 8.2), this vulnerability is no authentication required, low attack complexity.

Information Disclosure Flatpak Debian Linux +1
NVD GitHub
EPSS 1% CVSS 8.8
HIGH PATCH This Week

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.

Google RCE Flatpak +1
NVD GitHub
EPSS 2% CVSS 9.0
CRITICAL PATCH Act Now

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Rated critical severity (CVSS 9.0), this vulnerability is remotely exploitable, no authentication required.

Authentication Bypass Linux Flatpak
NVD GitHub
EPSS 0% CVSS 8.2
HIGH This Week

Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file. Rated high severity (CVSS 8.2), this vulnerability is low attack complexity. No vendor patch available.

Information Disclosure Flatpak Debian Linux +6
NVD GitHub
EPSS 0% CVSS 8.8
HIGH PATCH This Week

In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in. Rated high severity (CVSS 8.8), this vulnerability is low attack complexity.

Information Disclosure Flatpak Enterprise Linux Desktop +5
NVD GitHub
EPSS 0% CVSS 7.8
HIGH PATCH This Week

In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate permissions, for example setuid or world-writable. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. This Incorrect Permission Assignment vulnerability could allow attackers to access resources due to misconfigured permissions.

Information Disclosure Flatpak Debian Linux
NVD GitHub

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