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.
https://www.postgresql.org/support/security/CVE-2026-2004/
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2004.json
https://bugzilla.redhat.com/show_bug.cgi?id=2439325
https://access.redhat.com/security/cve/CVE-2026-2004
https://access.redhat.com/errata/RHSA-2026:8756
https://access.redhat.com/errata/RHSA-2026:4943
https://access.redhat.com/errata/RHSA-2026:4548
https://access.redhat.com/errata/RHSA-2026:4547
https://access.redhat.com/errata/RHSA-2026:4546
https://access.redhat.com/errata/RHSA-2026:4544
https://access.redhat.com/errata/RHSA-2026:4528
https://access.redhat.com/errata/RHSA-2026:4524
https://access.redhat.com/errata/RHSA-2026:4518
https://access.redhat.com/errata/RHSA-2026:4516
https://access.redhat.com/errata/RHSA-2026:4515
https://access.redhat.com/errata/RHSA-2026:4509
https://access.redhat.com/errata/RHSA-2026:4506
https://access.redhat.com/errata/RHSA-2026:4505
https://access.redhat.com/errata/RHSA-2026:4504
https://access.redhat.com/errata/RHSA-2026:4475
https://access.redhat.com/errata/RHSA-2026:4441
https://access.redhat.com/errata/RHSA-2026:4254
https://access.redhat.com/errata/RHSA-2026:4110
https://access.redhat.com/errata/RHSA-2026:4075
https://access.redhat.com/errata/RHSA-2026:4074
https://access.redhat.com/errata/RHSA-2026:4064
https://access.redhat.com/errata/RHSA-2026:4063
https://access.redhat.com/errata/RHSA-2026:4059
https://access.redhat.com/errata/RHSA-2026:4024
https://access.redhat.com/errata/RHSA-2026:3896
https://access.redhat.com/errata/RHSA-2026:3887
https://access.redhat.com/errata/RHSA-2026:3730