Medium
flatpak — security advisory
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust.
- Products
- flatpak
- Affected versions
- 0.10.0-1, 0.10.0-2, 0.10.1-1, 0.10.2-1, 0.10.2.1-1, 0.10.2.1-2, 0.10.3-1, 0.11.1-0ubuntu1, 0.11.3-2, 0.11.3-3, 0.11.7-0ubuntu0.1, 0.8.7-5, 1.0.1-0ubuntu0.1, 1.0.6-0ubuntu0.1, 1.0.7-0ubuntu0.18.04.1, 1.0.8-0ubuntu0.18.04.1, 1.0.9-0ubuntu0.1, 1.0.9-0ubuntu0.2, 1.0.9-0ubuntu0.3, 1.0.9-0ubuntu0.4, 1.0.9-0ubuntu0.4+esm1, 1.10.2-3, 1.12.2-1, 1.12.2-2, 1.12.3-1, 1.12.4-1, 1.12.5-1, 1.12.6-1, 1.12.7-1, 1.12.7-1ubuntu0.1, 1.12.7-1ubuntu0.1+esm1, 1.14.4-2, 1.14.5-1, 1.14.5-1build1, 1.14.5-1build4, 1.14.5-1build5, 1.14.5-1build6, 1.14.6-1, 1.14.6-1ubuntu0.1, 1.14.6-1ubuntu0.1+esm1, 1.16.0-2, 1.16.1-1build1, 1.16.1-2, 1.16.1-2ubuntu1, 1.16.1-3ubuntu1, 1.16.2-1, 1.16.3-1, 1.16.3-1build1, 1.16.4-1, 1.16.4-2, 1.16.6-1, 1.18.0-1, 1.18.1-1, 1.18.2-1, 1.18.4-1, 1.4.3-1, 1.6.0-1, 1.6.1-1, 1.6.2-1, 1.6.3-1, 1.6.5-0ubuntu0.1, 1.6.5-0ubuntu0.2, 1.6.5-0ubuntu0.3, 1.6.5-0ubuntu0.4, 1.6.5-0ubuntu0.5, 1.6.5-0ubuntu0.5+esm1
- Fixed versions
- Not specified
- CVEs
- CVE-2023-28101
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:39 UTC · Revision 1
Source evidence
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust.
osv:UBUNTU-CVE-2023-28101
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
flatpak
Fixed versions: Not specified
Complete source record
{
"id": "f1fc1060e33dd8ca43e50035a285d5a3cff9222488cfef99654821656379d5d6",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-28101",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-28101",
"summary": "Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust.",
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{
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{
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"evidence": "/affected/1/versions"
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{
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{
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{
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{
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{
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{
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"value": "1.18.1-1",
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{
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{
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{
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"structured": {
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"aliases": [
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],
"metrics": [
{
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},
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},
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},
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},
{
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},
{
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},
{
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{
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"package": {
"name": "flatpak",
"purl": "pkg:deb/ubuntu/flatpak?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1.16.1-2ubuntu1",
"1.16.1-3ubuntu1",
"1.16.2-1",
"1.16.3-1",
"1.16.3-1build1",
"1.16.4-1",
"1.16.4-2",
"1.16.6-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-28101.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "flatpak",
"binary_version": "1.16.6-1"
},
{
"binary_name": "flatpak-tests",
"binary_version": "1.16.6-1"
},
{
"binary_name": "gir1.2-flatpak-1.0",
"binary_version": "1.16.6-1"
},
{
"binary_name": "libflatpak0",
"binary_version": "1.16.6-1"
}
]
}
}
],
"modified": "2026-10-17T12:57:16.309058240Z",
"provider": "osv",
"upstream": [
"CVE-2023-28101"
],
"references": [
"https://ubuntu.com/security/CVE-2023-28101",
"https://github.com/flatpak/flatpak/commit/6cac99dafe6003c8a4bd5666341c217876536869",
"https://github.com/flatpak/flatpak/commit/7fe63f2e8f1fd2dafc31d45154cf0b191ebec66c",
"https://github.com/flatpak/flatpak/commit/409e34187de2b2b2c4ef34c79f417be698830f6c",
"https://github.com/flatpak/flatpak/security/advisories/GHSA-h43h-fwqx-mpp8",
"https://www.cve.org/CVERecord?id=CVE-2023-28101"
]
},
"related_cves": [
{
"value": "CVE-2023-28101",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357074,
"published_at": "2023-03-16T16:15:00+00:00"
}