{"id":"BIT-postgresql-2026-14669","summary":"PostgreSQL to_char heap buffer overflow executes arbitrary code","details":"Heap buffer overflow in PostgreSQL to_char(timestamptz) allows the party choosing the timezone to execute arbitrary code as the operating system user running the database, via a long POSIX timezone abbreviation.  Versions before PostgreSQL 18.5, 17.11, 16.15, 15.19, and 14.24 are affected.","aliases":["CVE-2026-14669"],"modified":"2026-08-19T09:45:18.603875127Z","published":"2026-08-19T08:52:34.805Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*"]},"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14669"},{"type":"WEB","url":"https://www.postgresql.org/support/security/CVE-2026-14669/"}],"affected":[{"package":{"name":"postgresql","ecosystem":"Bitnami","purl":"pkg:bitnami/postgresql"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"14.24.0"},{"introduced":"15.0.0"},{"fixed":"15.19.0"},{"introduced":"16.0.0"},{"fixed":"16.15.0"},{"introduced":"17.0.0"},{"fixed":"17.11.0"},{"introduced":"18.0.0"},{"fixed":"18.5.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/postgresql/BIT-postgresql-2026-14669.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}