Summary
[1.12.9-4.4]
- Use gsize for OCI delta sizes and harden delta parser (CVE-2026-96280)
Resolves: RHEL-271518
[1.12.9-4.3]
- Avoid symlink path traversal in revokefs writer (CVE-2026-96808)
Resolves: RHEL-267902
- Prevent arbitrary write as root via extra-data extraction (CVE-2026-96275)
Resolves: RHEL-267434
[1.12.9-4.2]
- Harden data dir and var setup against symlink attacks
Resolves: RHEL-258975
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Oracle Linux · 9 | flatpak | 0:1.12.9-4.el9_8.4 |
| Oracle Linux · 9 | flatpak-devel | 0:1.12.9-4.el9_8.4 |
| Oracle Linux · 9 | flatpak-libs | 0:1.12.9-4.el9_8.4 |
| Oracle Linux · 9 | flatpak-selinux | 0:1.12.9-4.el9_8.4 |
| Oracle Linux · 9 | flatpak-session-helper | 0:1.12.9-4.el9_8.4 |
Vulnerabilities 4
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High 8.8
Flatpak: flatpak: arbitrary write access as root via extra-data extraction
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 o…
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High 7.5
Flatpak: flatpak: buffer overflow in oci delta stream path names on 32-bit systems
The OCI delta stream parser read sizes as guint64 but passed them to GLib I/O and allocation functions expecting gsize (32 bits on 32-bit systems), causing undersized allocations while subsequent operations use the original 64-bit size, leading to heap buffer…
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High 7.4
In Flatpak before 1.18.1, a malicious sandboxed app can obtain arbitrary read and write access to files on the host, wh…
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High 7.4
In Flatpak before 1.18.1, the revokefs writer, used by the flatpak-system-helper to receive repository data from unpriv…