{"id":"CVE-2026-96279","published":"2026-09-27T20:16:53.043","lastModified":"2026-09-29T21:29:07.663","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.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwes":["CWE-59"],"vendors":[],"products":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-96279","tags":[]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2539417","tags":[]},{"url":"https://github.com/flatpak/flatpak/security/advisories/GHSA-9rww-v4mm-x4jg","tags":[]}],"exploitRefs":[{"url":"https://github.com/flatpak/flatpak/security/advisories/GHSA-9rww-v4mm-x4jg","tags":[]}],"hasPoc":true,"ai":null}