# CVE-2026-96282: flatpak: A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrar...

CVE-2026-96282 is fixed in flatpak on 1 platform, first by DEBIAN-CVE-2026-96282, released September 23, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-96282
- Priority: Routine
- CVSS: 3.1 (low)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 27, 2026

## Description

A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be mounted at unintended locations inside the sandbox.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | flatpak Debian 13.5 (trixie) | 1.16.6-1~deb13u2 | [DEBIAN-CVE-2026-96282](https://patchblox.com/security/data/fix/linux/debian-cve-2026-96282.md) | Sep 23, 2026 |
| Linux | flatpak Debian 14 | 1.18.1-1 | [DEBIAN-CVE-2026-96282](https://patchblox.com/security/data/fix/linux/debian-cve-2026-96282.md) | Sep 23, 2026 |
| Linux | flatpak sles 15.6 | 1.16.6-150600.3.12.1 | [SUSE-SU-2026:4944-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4944-1.md) | Nov 7, 2026 |
| Linux | flatpak sles 15.7 | 1.16.6-150600.3.12.1 | [SUSE-SU-2026:4944-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4944-1.md) | Nov 7, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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