Multiple vulnerabilities (CVE-2026-34078, CVE-2026-34079, CVSS 7.5 HIGH) in Flatpak could allow a malicious Flatpak application to delete arbitrary host files or escape its sandbox, leading to code execution on the host system. For Debian stable (trixie), these issues are fixed in Flatpak version 1.16.6-1~deb13u1. Administrators should upgrade their flatpak packages to this version immediately.
[SECURITY] [DSA 6207-1] flatpak security update To : debian-security-announce@lists.debian.org Subject : [SECURITY] [DSA 6207-1] flatpak security update From : Moritz Muehlenhoff < jmm@debian.org > Date : Sun, 12 Apr 2026 09:23:24 +0000 Message-id : < [🔎] adtkjIXHlYKOYOCJ@seger.debian.org > Reply-to : debian-security-announce-request@lists.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6207-1 security@debian.org https://www.debian.org/security/ Moritz Muehlenhoff April 12, 2026 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : flatpak CVE ID : CVE-2026-34078 CVE-2026-34079 Multiple security vulnerabilities were discovered in Flatpak, an application deployment framework for desktop apps, which could allow a Flatpak app to delete arbitrary hosts on the host or break out of the sandbox resulting in code execution in the host context. For the stable distribution (trixie), these problems have been fixed in version 1.16.6-1~deb13u1. We recommend that you upgrade your flatpak packages. For the detailed security status of flatpak please refer to its security tracker page at: https://security-tracker.debian.org/tracker/flatpak Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAmnbYxYACgkQEMKTtsN8 TjYEfg/+MZhI8fDO3RAbrskxzzvXfZKMM0J+Iz7t2ZY8O0TTYApZAvdKrmr1segw 7Tk+Zi/BuMOeiaFqPB68Vf6Noh6trg5sHeBlgeCm3hkQUnlzAqizXcmzqOnRbgr1 RsRiYKAKqQLLDAV8XDzNbqkvhzBGVIGh2sWCatr/WpPxbHbkHN7u0FBszLXG3I7z M+kje7ojJm77jxLQZtdpWCAvKOwVLqqCc8rsJZkEy/EWpBE+G9vV0Zwy59I/zvfC nodrq+P1y3qW+lpdcOZikl5exoWT0k2fAEvHkpxnEAaHqgC52dw25yWqF98ix7qg yr3Kn5+6C134ynSYTjTg9g149z263jmbcFVhYoivFJxZWMM8X9g10OjEVsCuNuBG fDuXfHwa8owgpUC/U/DUIIE/rvCX/ytVzHywbRrl81k4LD9sonBFAcyo/kb40Gwo o4xtWR7DBXGqHY3FK6qiPJH6qI7/AGTWit8/Ndd6XeIfKXAwWLKl5Q+pIfzZdxLV vnnsDCeQvNH68eXQZnCyFVnZ2WX9jFSB6J60Y7GGTJWyvH0lSo0jwuf6qMVzkjgL oWxLzZ3/32vqO8/aSGEsEKAaVHpVm2Bkdnwg5i/pegUMYoym+qWkmEUpC82G9URY rH5OrneQmMctiWGH7Jy+0AQ4v2BpiTlW2VZynvcsyZdlgNXNOxM= =lqJL -----END PGP SIGNATURE----- Reply to: debian-security-announce@lists.debian.org Moritz Muehlenhoff (on-list) Moritz Muehlenhoff (off-list) Prev by Date: [SECURITY] [DSA 6206-1] gdk-pixbuf security update Next by Date: [SECURITY] [DSA 6208-1] mediawiki security update Previous by thread: [SECURITY] [DSA 6206-1] gdk-pixbuf security update Next by thread: [SECURITY] [DSA 6208-1] mediawiki security update Index(es): Date Thread