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Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected."}],"affected":[{"defaultStatus":"unaffected","product":"PostgreSQL","vendor":"n/a","versions":[{"lessThan":"18.4","status":"affected","version":"18","versionType":"rpm"},{"lessThan":"17.10","status":"affected","version":"17","versionType":"rpm"},{"lessThan":"16.14","status":"affected","version":"16","versionType":"rpm"},{"lessThan":"15.18","status":"affected","version":"15","versionType":"rpm"},{"lessThan":"14.23","status":"affected","version":"0","versionType":"rpm"}]}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-385","type":"CWE","description":"Covert Timing Channel"}]}],"references":[{"url":"https://www.postgresql.org/support/security/CVE-2026-6478/"}],"metrics":[{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"configurations":[{"lang":"en","value":"victim user has a usable MD5 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