{"affected":[{"defaultStatus":"unaffected","product":"PostgreSQL","source":"CNA: PostgreSQL","vendor":"n/a","versions":[{"lessThan":"18.7","status":"affected","version":"18","versionType":"rpm"},{"lessThan":"17.12","status":"affected","version":"17","versionType":"rpm"},{"lessThan":"16.16","status":"affected","version":"16","versionType":"rpm"},{"lessThan":"15.20","status":"affected","version":"15","versionType":"rpm"},{"lessThan":"14.25","status":"affected","version":"0","versionType":"rpm"}]}],"cveId":"CVE-2026-116303","cwes":["CWE-862"],"description":"Missing authorization in PostgreSQL type conversion allows a database user to invoke a cast function despite lacking EXECUTE privilege on that function, via foreign keys, to_json(), and others.  A successful attack requires the attacker to search each database for access-restricted cast functions and identify confidentiality impact specific to each function implementation found.  There are few or no practical examples of an access-restricted cast function or of a cast function having confidentiality impact.  Versions before PostgreSQL 18.7, 17.12, 16.16, 15.20, and 14.25 are affected.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":3.1,"severity":"low","source":"CNA: PostgreSQL","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1794492901762,"publishedAt":1794492901762,"references":[{"source":"CNA: PostgreSQL","tags":[],"url":"https://www.postgresql.org/support/security/CVE-2026-116303/"}],"remediation":[],"revision":"3929c86973a73431d4a537d082d499ae612e6906ec2efc79636d9f75f180c5d8","sources":[{"modifiedAt":1794492901762,"name":"CNA: PostgreSQL","retrievedAt":1794496109087,"url":"https://www.cve.org/CVERecord?id=CVE-2026-116303"}],"ssvc":null,"status":"published","title":"PostgreSQL foreign key and JSON conversions bypass EXECUTE privilege on cast functions","updatedAt":1794496109087}