{"action":"Upgrade postgresql18 to 18.5-r0 or later.","affected":[{"fixed":"18.5-r0","introduced":"0"}],"component":"postgresql18","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.23","exploited":false,"fixed_versions":["18.5-r0"],"id":"tcs_01M5NFJ7QS993QSZM2ZX3CKMSQ","modified_at":"2026-10-01T02:17:49.195113567Z","published_at":"2026-08-13T13:17:46.520Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-16239","https://security.alpinelinux.org/vuln/CVE-2026-16239"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-16239#Alpine:v3.23/postgresql18","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-16239"}],"summary":"Type confusion in PostgreSQL \"portal\"/cursor lifecycle allows a user to execute arbitrary code as the operating system user running the database, via re-creation of a cursor or other portal with diffe"}