Medium [CVE-2026-34079] Arbitrary file deletion on host via improper cache file path validation
This medium-severity Red Hat Linux advisory covers CVE-2026-34079 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 7.
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Summary
Arbitrary file deletion on host via improper cache file path validation. Red Hat rates this moderate (CVSS 6.7).
Weakness: CWE-22. Affected package(s): flatpak.
Resolved in Red Hat advisory RHSA-2026:21757 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9.
- flatpak-0:1.12.9-4.el8_10
- flatpak-0:1.16.0-9.el10_2.1
- flatpak-0:1.12.9-3.el7_9
- flatpak-0:1.12.9-1.el8_6
- flatpak-0:1.12.9-2.el8_4
- flatpak-0:1.12.9-1.el8_8
- flatpak-0:1.12.7-5.el9_2.1
- flatpak-0:1.16.0-5.el10_0.2
- flatpak-0:1.12.9-4.el9_8.1
- flatpak-0:1.12.9-3.el9_4.1
- flatpak-0:1.12.9-4.el9_6.1
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:21757
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:21757 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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