{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-16239","assignerOrgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","state":"PUBLISHED","assignerShortName":"PostgreSQL","dateReserved":"2026-07-20T01:55:33.311Z","datePublished":"2026-08-13T13:00:13.131Z","dateUpdated":"2026-08-14T03:55:34.737Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","shortName":"PostgreSQL","dateUpdated":"2026-08-13T13:00:13.131Z"},"title":"PostgreSQL type confusion in cursor CLOSE + DECLARE executes arbitrary code","x_postgresql":{"component":"core server"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"defaultStatus":"unaffected","product":"PostgreSQL","vendor":"n/a","versions":[{"lessThan":"18.5","status":"affected","version":"18","versionType":"rpm"},{"lessThan":"17.11","status":"affected","version":"17","versionType":"rpm"},{"lessThan":"16.15","status":"affected","version":"16","versionType":"rpm"},{"lessThan":"15.19","status":"affected","version":"15","versionType":"rpm"},{"lessThan":"14.24","status":"affected","version":"0","versionType":"rpm"}]}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-843","type":"CWE","description":"Access of Resource Using Incompatible Type ('Type Confusion')"}]}],"references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-16239/"}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"}}],"credits":[{"lang":"en","value":"The PostgreSQL project thanks Ben Morris (Claude and Anthropic Research) for reporting this problem."}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-16239"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-14T03:55:34.737Z"}}]}}