Flatpak is a Linux application sandboxing and distribution framework. Prior to 1.16.4, the Flatpak portal accepts paths in the sandbox-expose options which can be app-controlled symlinks pointing at arbitrary paths. Flatpak run mounts the resolved host path in the sandbox. This gives apps access to all host files and can be used as a primitive to gain code execution in the host context. This vulnerability is fixed in 1.16.4.
References
Configurations
History
06 Jul 2026, 13:16
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30 Jun 2026, 03:18
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| CWE | CWE-59 | |
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17 Jun 2026, 10:38
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| References | () http://www.openwall.com/lists/oss-security/2026/04/09/8 - Mailing List, Third Party Advisory |
24 Apr 2026, 17:50
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| References | () https://github.com/flatpak/flatpak/security/advisories/GHSA-cc2q-qc34-jprg - Vendor Advisory | |
| References | () http://www.openwall.com/lists/oss-security/2026/04/09/8 - Third Party Advisory, Mailing List | |
| References | () http://www.openwall.com/lists/oss-security/2026/04/10/14 - Mailing List, Third Party Advisory | |
| CPE | cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 10.0 |
| First Time |
Flatpak
Flatpak flatpak |
11 Apr 2026, 01:16
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09 Apr 2026, 11:16
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07 Apr 2026, 22:16
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| New CVE |
Information
Published : 2026-04-07 22:16
Updated : 2026-07-15 02:20
NVD link : CVE-2026-34078
Mitre link : CVE-2026-34078
CVE.ORG link : CVE-2026-34078
JSON object : View
Products Affected
flatpak
- flatpak
