{"id":"CVE-2026-18024","year":2026,"sequence":18024,"component":"core server","score":4.3,"cvss_version":"3.0","vector":"AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","first_published":"2026-08-13","source_url":"https://www.postgresql.org/support/security/CVE-2026-18024/","facts":{"affected":{"14":"14","15":"15","16":"16","17":"17","18":"18"},"affected_ranges":[{"from":"0","until":"14.24"},{"from":"15","until":"15.19"},{"from":"16","until":"16.15"},{"from":"17","until":"17.11"},{"from":"18","until":"18.6"}],"cna_url":"https://cveawg.mitre.org/api/cve/CVE-2026-18024","component":"core server","cvss_version":"3.0","description_en":"Buffer over-read in PostgreSQL ascii() SQL function allows a user to disclose up to 3 bytes after the end of a specific allocation, via a crafted text value. This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. 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This is the same class of defect that CVE-2026-2006 fixed, though this instance has less impact. Versions before PostgreSQL 18.6, 17.11, 16.15, 15.19, and 14.24 are 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