{"id":"DEBIAN-CVE-2026-14672","details":"Observable response discrepancy in PostgreSQL SCRAM authentication allows an unauthenticated user to test the existence of a user via observing the SCRAM iteration count.  This requires the probed user to have a non-default scram_iterations count, because the authentication challenge for a nonexistent user reports the default scram_iterations.  Within major versions 16-18, minor versions before PostgreSQL 18.6, 17.11, and 16.15 are affected.  Versions before PostgreSQL 16 are unaffected.","modified":"2026-09-14T17:02:20.624086988Z","published":"2026-08-13T13:17:44.653Z","upstream":["CVE-2026-14672"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-14672"}],"affected":[{"package":{"name":"postgresql-17","ecosystem":"Debian:13","purl":"pkg:deb/debian/postgresql-17?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.11-0+deb13u1"}]}],"versions":["17.10-0+deb13u1","17.5-1","17.6-0+deb13u1","17.6-1","17.7-0+deb13u1","17.8-0+deb13u1","17.9-0+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14672.json"}},{"package":{"name":"postgresql-18","ecosystem":"Debian:14","purl":"pkg:deb/debian/postgresql-18?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"18.6-1"}]}],"versions":["18.0-1","18.1-1","18.1-2","18.2-1","18.3-1","18.4-1","18~beta1+20250612-1","18~beta1+20250624-1","18~beta1+20250701-1","18~beta1-1","18~beta2-1","18~beta3-1","18~rc1-1","18~rc1-2","18~rc1-3","18~~devel.20250318+g4078da6c478-1","18~~devel.20250331-1","18~~devel.20250405-1","18~~devel.20250421-1","18~~devel.20250502-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14672.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}