{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-8933", "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "state": "PUBLISHED", "assignerShortName": "canonical", "dateReserved": "2026-05-19T10:37:03.649Z", "datePublished": "2026-07-21T14:02:19.758Z", "dateUpdated": "2026-07-21T14:02:19.758Z"}, "containers": {"cna": {"title": "snap-confine Local Privilege Escalation via Capabilities Misconfiguration or Flaw in Execution Environment Setup", "datePublic": "2026-07-21T02:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-250", "description": "CWE-250 Execution with unnecessary privileges", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "affected": [{"collectionURL": "https://github.com/canonical", "packageName": "snapd", "repo": "https://github.com/canonical/snapd/", "versions": [{"status": "affected", "version": "2.75.0", "lessThan": "2.76.1", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Canonical", "product": "Ubuntu 26.04 LTS", "platforms": ["Linux"], "collectionURL": "https://launchpad.net/ubuntu/resolute", "packageName": "snapd", "repo": "https://launchpad.net/ubuntu/+source/snapd", "versions": [{"status": "unaffected", "version": "2.76+ubuntu26.04.3", "versionType": "dpkg"}], "defaultStatus": "affected"}, {"vendor": "Canonical", "product": "Ubuntu 24.04 LTS", "platforms": ["Linux"], "collectionURL": "https://launchpad.net/ubuntu/noble", "packageName": "snapd", "repo": "https://launchpad.net/ubuntu/+source/snapd", "versions": [{"status": "unaffected", "version": "2.76+ubuntu24.04.1", "versionType": "dpkg"}], "defaultStatus": "affected"}, {"vendor": "Canonical", "product": "Ubuntu 22.04 LTS", "platforms": ["Linux"], "collectionURL": "https://launchpad.net/ubuntu/jammy", "packageName": "snapd", "repo": "https://launchpad.net/ubuntu/+source/snapd", "versions": [{"status": "unaffected", "version": "2.76+ubuntu22.04.1", "versionType": "dpkg"}], "defaultStatus": "affected"}], "descriptions": [{"lang": "en", "value": "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).\nDue 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": [{"url": "https://ubuntu.com/security/CVE-2026-8933", "tags": ["vdb-entry", "issue-tracking"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 7.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}}], "credits": [{"lang": "en", "value": "Qualys Security Advisory Team", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "providerMetadata": {"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical", "dateUpdated": "2026-07-21T14:02:19.758Z"}}}}

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