RLSA-2026:80498 (CVE-2026-90616)
Vulnerability from osv_rocky – Published: 2026-10-13 12:08 – Updated: 2026-10-14 12:12 – Source websiteFlatpak 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)
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.
{
"affected": [
{
"package": {
"ecosystem": "Rocky Linux:10",
"name": "flatpak",
"purl": "pkg:rpm/rocky-linux/flatpak?distro=rocky-linux-10\u0026epoch=0"
},
"ranges": [
{
"database_specific": {
"yum_repository": "AppStream"
},
"events": [
{
"introduced": "0"
},
{
"fixed": "0:1.16.0-9.el10_2.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"credits": [
{
"name": "Rocky Enterprise Software Foundation"
},
{
"name": "Red Hat"
}
],
"database_specific": {
"license": "CC-BY-4.0",
"license_url": "https://creativecommons.org/licenses/by/4.0/",
"source_advisory": "RHSA-2026:80498"
},
"details": "Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux.\n\nSecurity Fix(es):\n\n* flatpak: Flatpak: Arbitrary code execution via missing symlink protection (CVE-2026-90616)\n\n* flatpak: flatpak: Arbitrary write access as root via extra-data extraction (CVE-2026-96275)\n\n* flatpak: flatpak: Buffer overflow in OCI delta stream path names on 32-bit systems (CVE-2026-96280)\n\n* flatpak: Flatpak: Local privilege escalation via symlink traversal in revokefs writer (CVE-2026-96808)\n\nFor 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.",
"id": "RLSA-2026:80498",
"modified": "2026-10-14T12:12:53.301140Z",
"published": "2026-10-13T12:08:58.021554Z",
"references": [
{
"type": "ADVISORY",
"url": "https://errata.rockylinux.org/RLSA-2026:80498"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532613"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539416"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539419"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2539569"
},
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:80498"
}
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Important: flatpak security update",
"upstream": [
"CVE-2026-90616",
"CVE-2026-96275",
"CVE-2026-96280",
"CVE-2026-96808"
]
}
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