usn-8701-1
Vulnerability from osv_ubuntu
Published
2026-08-31 12:24
Modified
2026-08-31 12:24
Summary
udisks2 vulnerability
Details
It was discovered that UDisks did not correctly validate the caller identity when handling the as-user option in the org.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. A local attacker with an active console session could possibly use this issue to mount filesystems on behalf of arbitrary users, including privileged accounts, leading to local privilege escalation.
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-7867",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-udisks-2.0",
"binary_version": "2.10.1-6ubuntu1.5"
},
{
"binary_name": "libudisks2-0",
"binary_version": "2.10.1-6ubuntu1.5"
},
{
"binary_name": "udisks2",
"binary_version": "2.10.1-6ubuntu1.5"
},
{
"binary_name": "udisks2-btrfs",
"binary_version": "2.10.1-6ubuntu1.5"
},
{
"binary_name": "udisks2-lvm2",
"binary_version": "2.10.1-6ubuntu1.5"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "udisks2",
"purl": "pkg:deb/ubuntu/udisks2@2.10.1-6ubuntu1.5?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.10.1-6ubuntu1.5"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.1-1ubuntu1",
"2.10.1-1ubuntu2",
"2.10.1-6",
"2.10.1-6build1",
"2.10.1-6ubuntu1",
"2.10.1-6ubuntu1.2",
"2.10.1-6ubuntu1.3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-7867",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-udisks-2.0",
"binary_version": "2.10.91-1ubuntu2.1"
},
{
"binary_name": "libudisks2-0",
"binary_version": "2.10.91-1ubuntu2.1"
},
{
"binary_name": "udisks2",
"binary_version": "2.10.91-1ubuntu2.1"
},
{
"binary_name": "udisks2-btrfs",
"binary_version": "2.10.91-1ubuntu2.1"
},
{
"binary_name": "udisks2-lvm2",
"binary_version": "2.10.91-1ubuntu2.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "udisks2",
"purl": "pkg:deb/ubuntu/udisks2@2.10.91-1ubuntu2.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.10.91-1ubuntu2.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.10.1-12.1ubuntu2",
"2.10.91-1ubuntu1",
"2.10.91-1ubuntu2"
]
}
],
"aliases": [],
"details": "It was discovered that UDisks did not correctly validate the caller\nidentity when handling the as-user option in the\norg.freedesktop.UDisks2.Filesystem.Mount() D-Bus method. A local attacker\nwith an active console session could possibly use this issue to mount\nfilesystems on behalf of arbitrary users, including privileged accounts,\nleading to local privilege escalation.",
"id": "USN-8701-1",
"modified": "2026-08-31T12:24:24Z",
"published": "2026-08-31T12:24:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8701-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-7867"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "udisks2 vulnerability",
"upstream": [
"UBUNTU-CVE-2026-7867"
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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