DEBIAN-CVE-2026-8933

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Source

https://security-tracker.debian.org/tracker/CVE-2026-8933

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8933.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-8933

Upstream

CVE-2026-8933

Published

2026-07-21T15:16:39Z

Modified

2026-09-14T17:03:37Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

[none]

Details

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.

References

https://security-tracker.debian.org/tracker/CVE-2026-8933

Affected packages

Debian:13 / snapd

Package

Name: snapd
Purl: pkg:deb/debian/snapd?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

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

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8933.json"

Debian:14 / snapd