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HIGH

CVE-2026-2004

PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code

CVSS v3

8.8

HIGH

EPSS Score

1.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

none

SSVC status

Description

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.

Technical details

Published
2026-02-12
Last Modified
2026-02-20

Frequently asked questions

What is 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.

Is CVE-2026-2004 actively exploited?

Active exploitation of CVE-2026-2004 has not been confirmed. Its EPSS score was 1.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-2004?

CVE-2026-2004 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-2004 affecting your environment?

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