Flatpak Critical Vulnerability - 20260416001¶
Overview¶
Ther WASOC has observed reports of a critical vulnerability affecting Flatpak, a Linux application sandboxing and distribution framework. Successful exploitation could allow host file access and code execution in the host context.
What is vulnerable?¶
| Product(s) Affected | Version(s) | CVE | CVSS | Severity |
|---|---|---|---|---|
| Flatpak | Prior to 1.16.4 | CVE-2026-34078 | 9.3 | Critical |
What has been observed?¶
The WASOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.
Recommendation¶
The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):