A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
Avoid installing Flatpak extensions from non-trusted sources.
References
History
Wed, 23 Sep 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A malicious or compromised Flatpak repository can write attacker-controlled content to arbitrary locations on the host filesystem via extract_extra_data(). On system installs, the write happens as root. Two issues combine: `files/extra` is resolved via path operations that follow symlinks, and blob names from `xa.extra-data-sources` are not sanitized against `..` traversal. | |
| Title | Flatpak: flatpak: arbitrary write access as root via extra-data extraction | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-22 | |
| 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
|
Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-23T16:08:11.613Z
Reserved: 2026-09-22T20:42:17.038Z
Link: CVE-2026-96275
No data.
Status : Received
Published: 2026-09-23T15:17:32.180
Modified: 2026-09-23T15:17:32.180
Link: CVE-2026-96275
No data.
OpenCVE Enrichment
Updated: 2026-09-23T17:00:08Z
Weaknesses