Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.
Security Fix(es):
flatpak: Flatpak: Arbitrary code execution via missing symlink protection (CVE-2026-90616)
flatpak: flatpak: Arbitrary write access as root via extra-data extraction (CVE-2026-96275)
flatpak: flatpak: Buffer overflow in OCI delta stream path names on 32-bit systems (CVE-2026-96280)
flatpak: Flatpak: Local privilege escalation via symlink traversal in revokefs writer (CVE-2026-96808)
flatpak: flatpak: Arbitrary file deletion in root context via path traversal in deploy directory export/bin (CVE-2026-97023)
flatpak: flatpak: Arbitrary write in root context via path traversal in deploy directory files/etc (CVE-2026-97024)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
{
"license": "CC-BY-4.0",
"license_url": "https://creativecommons.org/licenses/by/4.0/",
"source_advisory": "RHSA-2026:98490"
}