CVE-2026-2004
PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1287 |
| Vendor | n/a |
| Product | postgresql |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 12, 2026 |
| Last Updated | Jul 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / PostgreSQL
18 < 18.2 17 < 17.8 16 < 16.12 15 < 15.16 0 < 14.21
References
postgresql.org: https://www.postgresql.org/support/security/CVE-2026-2004/ access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-2004 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2439325 security.access.redhat.com: https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2004.json access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4441 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3887 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19010 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:19009 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4064 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4024 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4059 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4063 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4506 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4509 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4504 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4505 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4516 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4075 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4074 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4515 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4518 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4254 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4475 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4548 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4544 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4524 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4546 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4547 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4528 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3896 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4110 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:3730 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:8756 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:4943
Credits
The PostgreSQL project thanks Daniel Firer, as part of zeroday.cloud, for reporting this problem.