{"id":"AZL-93270","summary":"CVE-2026-6390 affecting package nano 6.4-3","details":"A flaw was found in GNU nano's multi-buffer error message handling. When a user opens multiple files at startup and one triggers an ALERT-level error, a specially crafted filename containing printf format specifiers can be reinterpreted. This format string vulnerability may allow an attacker to achieve stack information disclosure, cause a denial of service (crash), or potentially perform arbitrary memory writes.","modified":"2026-08-30T05:26:50Z","published":"2026-07-23T05:16:38Z","upstream":["CVE-2026-6390"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6390"}],"affected":[{"package":{"name":"nano","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/nano"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.4-3"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-93270.json"}}],"schema_version":"1.9.0"}