{"id":"CVE-2026-8933","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).\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.","modified":"2026-07-27T04:03:24.001850854Z","published":"2026-07-21T14:02:19.758Z","database_specific":{"cna_assigner":"canonical","cwe_ids":["CWE-250"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8933.json"},"references":[{"type":"WEB","url":"https://github.com/canonical"},{"type":"WEB","url":"https://github.com/canonical/snapd/"},{"type":"WEB","url":"https://launchpad.net/ubuntu/+source/snapd"},{"type":"WEB","url":"https://launchpad.net/ubuntu/jammy"},{"type":"WEB","url":"https://launchpad.net/ubuntu/noble"},{"type":"WEB","url":"https://launchpad.net/ubuntu/resolute"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/8xxx/CVE-2026-8933.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8933"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-8933"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/canonical/snapd","events":[{"introduced":"0"},{"fixed":"120ec00365ceab53039ab25863ef73539b5a1647"}],"database_specific":{"extracted_events":[{"introduced":"2.75.0"},{"fixed":"2.76.1"}],"source":"AFFECTED_FIELD"}}],"versions":["2.76","untagged-ec50ee5bfb45daefc236","2.15.2","2.15","2.14.2.16.04","2.14.1","2.14","2.13","2.12","2.11","2.0.10","2.0.9","2.0.8","2.0.7","2.0.6","2.0.5","2.0.4","2.0.3","2.0","1.9.4","1.9.3","1.9.2","1.9.1","1.9","ppa","1.7.3+20160310ubuntu1","1.7.3+20160308ubuntu1","1.7.3+20160303ubuntu4","1.7.3+20160303ubuntu3","1.7.3+20160303ubuntu2","1.7.3+20160303ubuntu1","1.7.3+20160225ubuntu1","1.7.2+20160223ubuntu1","1.7.2+20160204ubuntu1","1.7.2+20160113ubuntu1","1.7.2ubuntu1","1.7ubuntu1","1.6ubuntu1","1.5ubuntu1","1.4ubuntu1","1.3ubuntu1","1.2-0ubuntu1","1.1.2-0ubuntu1","1.1.1-0ubuntu1","1.1-0ubuntu1","1.0.1-0ubuntu1","1.0-0ubuntu1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-8933.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}