A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
Only install applications from trusted OCI registries. Flatpak remotes using the default OSTree transport are not affected.
References
History
Sun, 27 Sep 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
cvssV3_1
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Sun, 27 Sep 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | A malicious OCI registry can hardlink arbitrary host files into the extraction directory when a user installs or updates a Flatpak application from an OCI remote, allowing disclosure of arbitrary host file contents. For system-wide installs running as root, this includes sensitive files such as /etc/shadow. | |
| Title | Flatpak: flatpak: path traversal issue in oci archive extraction via hardlinks | |
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| Weaknesses | CWE-59 | |
| 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 |
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-09-27T20:19:12.703Z
Reserved: 2026-09-22T20:43:23.241Z
Link: CVE-2026-96279
No data.
Status : Received
Published: 2026-09-27T20:16:53.043
Modified: 2026-09-27T21:17:04.100
Link: CVE-2026-96279
No data.
OpenCVE Enrichment
Updated: 2026-09-27T21:30:18Z
Weaknesses