UnratedFix available
flatpak: Fix of CVE-2026-90616
Type: advisorySources: OSV
- CVE-2026-90616: fix sandbox escape via symlinked per-app data directories by creating them with glnx_chase_and_mkdirat and binding /var/cache, /var/data, /var/config and /var/tmp through chased fds
- Products
- flatpak, flatpak-devel, flatpak-libs, flatpak-selinux, flatpak-session-helper, flatpak-tests
- Affected versions
- Not specified
- Fixed versions
- 1.12.7-2.el9_2.tuxcare.els7
- CVEs
- CVE-2026-90616
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:45 UTC · Revision 1
Source evidence
- CVE-2026-90616: fix sandbox escape via symlinked per-app data directories by creating them with glnx_chase_and_mkdirat and binding /var/cache, /var/data, /var/config and /var/tmp through chased fds
osv:CLSA-2026-1789979782
flatpak
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
flatpak-devel
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
flatpak-libs
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
flatpak-selinux
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
flatpak-session-helper
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
flatpak-tests
Fixed versions: 1.12.7-2.el9_2.tuxcare.els7
Complete source record
{
"id": "61381beec485353699468c7beb20ab19fe7fce516d77e210ec6994ec30758e0e",
"url": "https://osv.dev/vulnerability/CLSA-2026-1789979782",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "flatpak: Fix of CVE-2026-90616",
"summary": "- CVE-2026-90616: fix sandbox escape via symlinked per-app data directories by creating them with glnx_chase_and_mkdirat and binding /var/cache, /var/data, /var/config and /var/tmp through chased fds",
"evidence": "osv:CLSA-2026-1789979782",
"products": [
{
"name": {
"value": "flatpak",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flatpak-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flatpak-libs",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flatpak-selinux",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flatpak-session-helper",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flatpak-tests",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.12.7-2.el9_2.tuxcare.els7",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1789979782",
"aliases": [
"CLSA-2026-1789979782"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak",
"purl": "pkg:rpm/tuxcare/flatpak?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak-devel",
"purl": "pkg:rpm/tuxcare/flatpak-devel?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak-libs",
"purl": "pkg:rpm/tuxcare/flatpak-libs?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak-selinux",
"purl": "pkg:rpm/tuxcare/flatpak-selinux?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak-session-helper",
"purl": "pkg:rpm/tuxcare/flatpak-session-helper?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.12.7-2.el9_2.tuxcare.els7"
}
]
}
],
"package": {
"name": "flatpak-tests",
"purl": "pkg:rpm/tuxcare/flatpak-tests?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1789979782.json"
}
}
],
"modified": "2026-10-26T09:30:49.809680888Z",
"provider": "osv",
"upstream": [
"CVE-2026-90616"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1789979782.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-90616"
]
},
"related_cves": [
{
"value": "CVE-2026-90616",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 447266,
"published_at": "2026-09-21T08:36:33+00:00"
}