Low [CVE-2026-96284] Flatpak: flatpak: arbitrary read-access to files in the system-helper context via oci symlink following
This low-severity Red Hat Linux advisory covers CVE-2026-96284 affecting Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
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Summary
A malicious user can get read-access to files in the flatpak-system-helper context if a system OCI repository is configured, because the OCI code paths in the system helper follow symlinks when importing OCI images that are under the user's control. Red Hat estimates the CVSSv3.1 vector of CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.
Exploitation requires the attacker to be a local, authenticated user able to trigger a system-wide OCI image import via the flatpak-system-helper D-Bus service (AV:L, PR:L). This depends on the uncommon, non-default environmental precondition that a system OCI repository is configured (AC:H).
No interaction from another party is required (UI:N). The vulnerable and impacted components remain within the same overall flatpak client/helper security authority (S:U).
While some host file content can leak via this symlink-following behavior, disclosure surfaces only through the attacker's own crafted import under the rarer system-OCI-repository precondition, rather than through a broadly repeatable read of arbitrary files (C:L). There is no integrity or availability impact (I:N/A:N).
Red Hat severity: Low — CVSS 2.5 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N). Weakness: CWE-59.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
Mitigation checklist
- Remove all OCI system remotes.
Official advisory · high-confidence parse· fetched 2 days ago·verify at source
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