CVE-2026-8933

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Source
https://cve.org/CVERecord?id=CVE-2026-8933
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8933.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-8933
Downstream
Published
2026-07-21T14:02:19.758Z
Modified
2026-07-27T04:03:24.001850854Z
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
snap-confine Local Privilege Escalation via Capabilities Misconfiguration or Flaw in Execution Environment Setup
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.

Database specific 
{
    "cna_assigner": "canonical",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8933.json",
    "cwe_ids": [
        "CWE-250"
    ]
}
References

Affected packages

Git / github.com/canonical/snapd

Affected ranges

Type
GIT
Repo
https://github.com/canonical/snapd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
120ec00365ceab53039ab25863ef73539b5a1647
Database specific 
{
    "extracted_events": [
        {
            "introduced": "2.75.0"
        },
        {
            "fixed": "2.76.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

1.*
1.0-0ubuntu1
1.0.1-0ubuntu1
1.1-0ubuntu1
1.1.1-0ubuntu1
1.1.2-0ubuntu1
1.2-0ubuntu1
1.3ubuntu1
1.4ubuntu1
1.5ubuntu1
1.6ubuntu1
1.7.2+20160113ubuntu1
1.7.2+20160204ubuntu1
1.7.2+20160223ubuntu1
1.7.2ubuntu1
1.7.3+20160225ubuntu1
1.7.3+20160303ubuntu1
1.7.3+20160303ubuntu2
1.7.3+20160303ubuntu3
1.7.3+20160303ubuntu4
1.7.3+20160308ubuntu1
1.7.3+20160310ubuntu1
1.7ubuntu1
1.9
1.9.1
1.9.2
1.9.3
1.9.4
2.*
2.0
2.0.10
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.11
2.12
2.13
2.14
2.14.1
2.14.2.16.04
2.15
2.15.2
2.76
Other
ppa
untagged-ec50ee5bfb45daefc236

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8933.json"