DEBIAN-CVE-2026-8933
A local privilege escalation vulnerability exists in snap-confine, a set-capabilities core component used internally by Canonical snapd to construct the secure execution environment for snap applications. This vulnerability uniquely affects versions of snap-confine configured with set-capabilities (rather than standard set-uid-root installations). Due to a flaw in how privilege boundaries or security sandboxes are initialized when the binary runs under limited ambient capabilities, a local, unprivileged attacker can exploit this behavior to bypass intended restrictions and execute arbitrary code. Successful exploitation allows the local user to elevate their privileges to full root authority.
DEBIAN-CVE-2026-8933
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-8933
snapd
Source reference: /affected/0/package/name
- Affected versions
- 2.68.3-3
Source reference:
/affected/0/versions2.68.3-3+deb13u1Source reference:
/affected/0/versions2.71-1Source reference:
/affected/0/versions2.71-2Source reference:
/affected/0/versions2.71-3Source reference:
/affected/0/versions2.72-1Source reference:
/affected/0/versions2.73-3Source reference:
/affected/0/versions2.73-4Source reference:
/affected/0/versions2.74.1-1Source reference:
/affected/0/versions2.75.2-1Source reference:
/affected/0/versions2.75.2-2Source reference:
/affected/0/versions2.76-1Source reference:
/affected/0/versions2.76.3-1Source reference:
/affected/0/versions2.76.3-2Source reference:
/affected/0/versions2.77.1-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
snapd
Source reference: /affected/1/package/name
- Affected versions
- 2.68.3-3
Source reference:
/affected/1/versions2.71-1Source reference:
/affected/1/versions2.71-2Source reference:
/affected/1/versions2.71-3Source reference:
/affected/1/versions2.72-1Source reference:
/affected/1/versions2.73-3Source reference:
/affected/1/versions2.73-4Source reference:
/affected/1/versions2.74.1-1Source reference:
/affected/1/versions2.75.2-1Source reference:
/affected/1/versions2.75.2-2Source reference:
/affected/1/versions2.76-1Source reference:
/affected/1/versions - Fixed versions
- 2.76.3-1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "snapd",
"purl": "pkg:deb/debian/snapd?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"2.68.3-3",
"2.68.3-3+deb13u1",
"2.71-1",
"2.71-2",
"2.71-3",
"2.72-1",
"2.73-3",
"2.73-4",
"2.74.1-1",
"2.75.2-1",
"2.75.2-2",
"2.76-1",
"2.76.3-1",
"2.76.3-2",
"2.77.1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8933.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.76.3-1"
}
]
}
],
"package": {
"name": "snapd",
"purl": "pkg:deb/debian/snapd?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"2.68.3-3",
"2.71-1",
"2.71-2",
"2.71-3",
"2.72-1",
"2.73-3",
"2.73-4",
"2.74.1-1",
"2.75.2-1",
"2.75.2-2",
"2.76-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8933.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58531 · Revision 1
- Added to Heist Feed
- Publisher date