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PG.CENTER connects PostgreSQL documentation, reference, and ecosystem knowledge. Maintained by Pigsty.

CVE-2026-2004

Missing validation of type of input in PostgreSQL intarray extension selectivity estimator function allows an object creator to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected.

Version Information

Affected branchIntroducedFixed InFix Published
14—14.212026-02-12
15—15.162026-02-12
16—16.122026-02-12
17—17.82026-02-12
18—18.22026-02-12

CVSS 3.0

Overall Score8.8
Componentcontrib module
VectorAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

First published: 2026-02-12

Historical source observations

These dated records preserve the original source claims separately from the reviewed fix list.

center · 2026-10-03 12:08:35.169032+08

  • PostgreSQL 18 · Original minor coordinate: 2
  • PostgreSQL 17 · Original minor coordinate: 8
  • PostgreSQL 16 · Original minor coordinate: 12
  • PostgreSQL 15 · Original minor coordinate: 16
  • PostgreSQL 14 · Original minor coordinate: 21

pgweb · 2026-10-03 12:08:55.967155+08

  • PostgreSQL 18 · Original minor coordinate: 2
  • PostgreSQL 17 · Original minor coordinate: 8
  • PostgreSQL 16 · Original minor coordinate: 12
  • PostgreSQL 15 · Original minor coordinate: 16
  • PostgreSQL 14 · Original minor coordinate: 21

Original security advisory · JSON · All advisories