{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63298","assignerOrgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","state":"PUBLISHED","assignerShortName":"canonical","dateReserved":"2026-07-16T09:49:29.911Z","datePublished":"2026-08-12T19:22:07.286Z","dateUpdated":"2026-08-13T14:33:57.467Z"},"containers":{"cna":{"title":"LXD arbitrary lxc.conf directive injection via NVIDIA instance configuration","descriptions":[{"lang":"en","value":"An improper neutralization of special elements vulnerability in LXD's NVIDIA instance configuration handling allows an authenticated attacker to inject arbitrary configuration directives. By supplying newline characters within the 'nvidia.driver.capabilities' or 'nvidia.require.*' configuration values, an attacker can manipulate the generated lxc.conf file. This flaw enables the attacker to execute arbitrary code on the host system with the privileges of the LXD daemon."}],"affected":[{"vendor":"Canonical","product":"LXD","packageName":"LXD","platforms":["Linux"],"repo":"https://github.com/canonical/lxd","defaultStatus":"unaffected","versions":[{"version":"5.0.0","status":"affected","versionType":"semver","lessThan":"5.0.8"},{"version":"5.21.0","status":"affected","versionType":"semver","lessThan":"5.21.6"},{"version":"4.0.0","status":"affected","versionType":"semver","lessThan":"4.0.12"}]}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","cweId":"CWE-78","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-81","descriptions":[{"lang":"en","value":"Input Data Manipulation"}]},{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"Privilege Escalation"}]}],"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2","tags":["vdb-entry","vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}}],"source":{"discovery":"EXTERNAL"},"solutions":[{"lang":"en","value":"Upgrade to LXD version 4.0.12 or later, 5.0.8 or later, or 5.12.6 or later."}],"providerMetadata":{"orgId":"cc1ad9ee-3454-478d-9317-d3e869d708bc","shortName":"canonical","dateUpdated":"2026-08-12T19:22:07.286Z"}},"adp":[{"references":[{"url":"https://github.com/canonical/lxd/security/advisories/GHSA-vfh7-q59q-54v2","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T14:33:35.469940Z","id":"CVE-2026-63298","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-13T14:33:57.467Z"}}]}}