{"id":"CVE-2026-16239","aliases":[],"url":"https://o3.security/vulnerability/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…","details":"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 different types.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.","published":"2026-08-13T13:17:46.520","modified":"2026-08-14T05:16:57.287","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://www.postgresql.org/support/security/CVE-2026-16239/"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-14T05:16:57.287"}}