{"id":"CLEANSTART-2026-TG48757","summary":"When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash","details":"Security vulnerability affects the temporal-server package. When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.","modified":"2026-10-08T16:47:19.769904440Z","published":"2026-10-06T00:36:13.572006Z","upstream":["CVE-2026-33811"],"database_specific":{},"references":[{"type":"ADVISORY","url":"https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-TG48757.json"},{"type":"WEB","url":"https://osv.dev/vulnerability/CVE-2026-33811"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33811"}],"affected":[{"package":{"name":"temporal-server","ecosystem":"CleanStart","purl":"pkg:apk/cleanstart/temporal-server"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31.3-r3"}]}],"database_specific":{"source":"https://github.com/cleanstart-dev/cleanstart-security-advisories/blob/main/advisories/2026/CLEANSTART-2026-TG48757.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}