CVE-2026-96282

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.

CVSS Vector

References

• https://access.redhat.com/security/cve/CVE-2026-96282
• https://bugzilla.redhat.com/show_bug.cgi?id=2539422
• https://github.com/flatpak/flatpak/security/advisories/GHSA-w69g-9x8j-7p8f