usn-8102-1
Vulnerability from osv_ubuntu
Published
2026-03-17 14:21
Modified
2026-06-25 10:47
Summary
snapd vulnerability
Details
Qualys discovered that snapd incorrectly handled certain operations in the snap's private /tmp directory. If systemd-tmpfiles is enabled to automatically clean up this directory, a local attacker could possibly use this issue to re-create the deleted directory, resulting in privilege escalation.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-3888",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "snap-confine",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "snapd",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.61.4ubuntu0.16.04.1+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.61.4ubuntu0.16.04.1+esm2?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.61.4ubuntu0.16.04.1+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.9",
"1.9.1.1",
"1.9.2",
"2.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.5",
"2.0.8",
"2.0.9",
"2.0.10",
"2.11+0.16.04",
"2.12+0.16.04",
"2.13",
"2.14.2~16.04",
"2.15.2ubuntu1",
"2.16ubuntu3",
"2.17.1ubuntu1",
"2.20.1ubuntu1",
"2.21",
"2.22.2",
"2.22.3",
"2.22.6",
"2.23.1",
"2.24.1",
"2.25",
"2.26.10",
"2.27.5",
"2.28.5",
"2.29.4.2",
"2.32.3.2",
"2.32.9",
"2.33.1ubuntu2",
"2.34.2",
"2.34.2ubuntu0.1",
"2.37.4",
"2.37.4ubuntu0.1",
"2.38",
"2.39.2",
"2.39.2ubuntu0.2",
"2.40",
"2.42.1",
"2.45.1",
"2.45.1ubuntu0.2",
"2.46.1",
"2.47.1",
"2.48",
"2.48.3",
"2.54.3+16.04~esm2",
"2.54.3+16.04.0ubuntu0.1~esm3",
"2.54.3+16.04.0ubuntu0.1~esm4",
"2.54.3+16.04.0ubuntu0.1~esm5",
"2.54.3+16.04.0ubuntu0.1~esm6",
"2.61.4ubuntu0.16.04.1+esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-3888",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "snap-confine",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "snapd",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.61.4ubuntu0.18.04.1+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.61.4ubuntu0.18.04.1+esm2?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.61.4ubuntu0.18.04.1+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.28.5+17.10",
"2.29.4.1+18.04",
"2.29.4.2+18.04",
"2.31.1+18.04",
"2.32+18.04~pre5",
"2.32+18.04~pre6",
"2.32+18.04",
"2.32.3.2+18.04",
"2.32.5+18.04",
"2.32.8+18.04",
"2.32.9+18.04",
"2.33.1+18.04ubuntu2",
"2.34.2+18.04",
"2.34.2+18.04.1",
"2.37.1+18.04",
"2.37.1.1+18.04",
"2.37.4+18.04",
"2.37.4+18.04.1",
"2.38+18.04",
"2.39.2+18.04",
"2.40+18.04",
"2.42.1+18.04",
"2.45.1+18.04",
"2.45.1+18.04.2",
"2.46.1+18.04",
"2.47.1+18.04",
"2.48+18.04",
"2.48.3+18.04",
"2.49.2+18.04",
"2.51.1+18.04",
"2.54.2+18.04ubuntu1",
"2.54.3+18.04",
"2.54.3+18.04.2ubuntu0.1",
"2.54.3+18.04.2ubuntu0.2",
"2.55.5+18.04",
"2.57.5+18.04",
"2.57.5+18.04ubuntu0.1",
"2.58+18.04",
"2.58+18.04.1",
"2.61.4ubuntu0.18.04.1+esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-3888",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "snap-confine",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "snapd",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.67.1+20.04ubuntu1~esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.67.1+20.04ubuntu1~esm1?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.67.1+20.04ubuntu1~esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.41+19.10.1",
"2.42.1+20.04",
"2.43.3+git1.8109f8",
"2.44~pre1+20.04",
"2.44+20.04",
"2.44.2+20.04",
"2.44.3+20.04",
"2.45.1+20.04",
"2.45.1+20.04.2",
"2.46.1+20.04",
"2.47.1+20.04",
"2.48+20.04",
"2.48.3+20.04",
"2.49.2+20.04",
"2.51.1+20.04ubuntu2",
"2.54.2+20.04ubuntu2",
"2.54.3+20.04",
"2.54.3+20.04.1",
"2.54.3+20.04.1ubuntu0.1",
"2.54.3+20.04.1ubuntu0.2",
"2.54.3+20.04.1ubuntu0.3",
"2.55.5+20.04",
"2.57.5+20.04",
"2.57.5+20.04ubuntu0.1",
"2.58+20.04",
"2.58+20.04.1",
"2.61.3+20.04",
"2.62+20.04",
"2.63+20.04",
"2.63+20.04ubuntu0.1",
"2.65.3+20.04",
"2.66.1+20.04",
"2.67.1+20.04"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-3888",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "snap-confine",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "snapd",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.73+ubuntu22.04.1"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.73+ubuntu22.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.73+ubuntu22.04.1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.73+ubuntu22.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.53+21.10ubuntu1",
"2.54.2+22.04ubuntu1",
"2.54.2+22.04ubuntu2",
"2.54.2+22.04ubuntu3",
"2.54.3+git19.g868fc21+22.04",
"2.54.3+git26.g360067e+22.04",
"2.55.2+22.04",
"2.55.2+22.04.1",
"2.55.3+22.04",
"2.55.3+22.04ubuntu1",
"2.55.5+22.04",
"2.56.2+22.04ubuntu1",
"2.57.4+22.04",
"2.57.5+22.04",
"2.57.5+22.04ubuntu0.1",
"2.58+22.04",
"2.58+22.04.1",
"2.61.3+22.04",
"2.62+22.04",
"2.63+22.04",
"2.63+22.04ubuntu0.1",
"2.65.3+22.04",
"2.66.1+22.04",
"2.67.1+22.04",
"2.68.5+ubuntu22.04.1",
"2.71+ubuntu22.04",
"2.72+ubuntu22.04",
"2.73+ubuntu22.04"
]
},
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "snap-confine",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "snapd",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.73+ubuntu24.04.1"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.73+ubuntu24.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.73+ubuntu24.04.1?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.73+ubuntu24.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.60.4+23.10",
"2.61.3+24.04",
"2.62+24.04build1",
"2.63+24.04",
"2.63+24.04ubuntu0.1",
"2.63.1+24.04",
"2.65.3+24.04",
"2.66.1+24.04",
"2.67.1+24.04",
"2.68.5+ubuntu24.04.1",
"2.71+ubuntu24.04",
"2.72+ubuntu24.04",
"2.73+ubuntu24.04"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-3888",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:25.10"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "snap-confine",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "snapd",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.73+ubuntu25.10.1"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.73+ubuntu25.10.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.73+ubuntu25.10.1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.73+ubuntu25.10.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.67.1+25.04",
"2.68.5+ubuntu25.10.2",
"2.71+ubuntu25.10",
"2.71.1+ubuntu25.10.1",
"2.72+ubuntu25.10.2",
"2.73+ubuntu25.10"
]
}
],
"aliases": [],
"details": "Qualys discovered that snapd incorrectly handled certain operations in the\nsnap\u0027s private /tmp directory. If systemd-tmpfiles is enabled to automatically\nclean up this directory, a local attacker could possibly use this issue to\nre-create the deleted directory, resulting in privilege escalation.",
"id": "USN-8102-1",
"modified": "2026-06-25T10:47:36Z",
"published": "2026-03-17T14:21:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8102-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-3888"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "snapd vulnerability",
"upstream": [
"UBUNTU-CVE-2026-3888"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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