Flatpak
CVE-2019-8308
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Resource sphere isolation
MITRE ATT&CK
1 technique across 1 tactic: Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.2 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, user interaction required. |
| Exploit ScenarioDerived | A local attacker with access to the system could access resources from an unintended security context. |
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Alert meAnalysisAI
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.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement proper access controls, validate resource access permissions, use security boundaries.
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Technical ContextAI · show details
This vulnerability is classified as Exposure of Resource to Wrong Sphere (CWE-668), which allows attackers to access resources from an unintended security context. 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. Affected products include: Flatpak, Debian Debian Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus. Version information: before 1.0.7.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
Sandbox escape in Flatpak versions prior to 1.16.4 allows applications to access arbitrary host filesystem paths and ach
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 sever
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity
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
Arbitrary file deletion in Flatpak versions prior to 1.16.4 allows sandboxed applications to delete files on the host sy
Message-filtering bypass in xdg-dbus-proxy before 0.1.9 lets a malicious or already-compromised sandboxed application -
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity
In Flatpak before 0.8.7, a third-party app repository could include malicious apps that contain files with inappropriate
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. Rated high severity
Local privilege escalation to root in Flatpak before 1.18.1 lets an unprivileged user holding an active local session ab
Path traversal in Flatpak's app deployment handling of the exported files/etc directory allows a malicious Flatpak appli
Path traversal in Flatpak's handling of the export/bin directory during application deployment allows a malicious Flatpa
Exploit-DB