Description
Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry (.desktop) and D-Bus Service (.service) files, instead of validating against an allowlist. A malicious Flatpak app can use this to cause denial of service (e.g. forced application restart loops) or to influence host D-Bus/systemd activation behavior beyond what the sandbox is intended to permit.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
Vendor Workaround
Only install applications from trusted sources.
Tracking
Sign in to view the affected projects.
Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-6524-1 | flatpak security update |
References
History
Mon, 28 Sep 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Flatpak passes through arbitrary vendor-extension keys unmodified when exporting an application's Desktop Entry (.desktop) and D-Bus Service (.service) files, instead of validating against an allowlist. A malicious Flatpak app can use this to cause denial of service (e.g. forced application restart loops) or to influence host D-Bus/systemd activation behavior beyond what the sandbox is intended to permit. | |
| Title | Flatpak: flatpak: denial of service via unsanitized keys in exported desktop entry / d-bus service files | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-20 | |
| CPEs | cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-28T20:57:06.758Z
Reserved: 2026-09-23T21:12:57.647Z
Link: CVE-2026-97027
No data.
Status : Received
Published: 2026-09-28T21:17:20.067
Modified: 2026-09-28T21:17:20.067
Link: CVE-2026-97027
No data.
OpenCVE Enrichment
No data.
Weaknesses
-
CWE-20
Improper Input Validation
Debian DSA