CVE-2026-34078

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/flatpak/flatpak/security/advisories/GHSA-cc2q-qc34-jprg
http://www.openwall.com/lists/oss-security/2026/04/09/8
http://www.openwall.com/lists/oss-security/2026/04/10/14

Configurations

No configuration.

History

11 Apr 2026, 01:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/04/10/14 -

09 Apr 2026, 11:16

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/04/09/8 -

07 Apr 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-07 22:16

Updated : 2026-04-11 01:16

NVD link : CVE-2026-34078

Mitre link : CVE-2026-34078

CVE.ORG link : CVE-2026-34078

JSON object : View

Products Affected

No product.

CWE

CWE-61

UNIX Symbolic Link (Symlink) Following

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