PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code
Summary
PostgreSQL intarray missing validation of type of input to selectivity estimator executes arbitrary code. Red Hat rates this important (CVSS 8.8). Weakness: CWE-1287. Affected package(s): postgresql, postgresql:16, postgresql:15, postgresql18-main, rhui5/rhua-rhel9:1773670137, postgresql:13. Resolved in Red Hat advisory RHSA-2026:4516 — update the affected packages (`sudo dnf update`).
- postgresql-0:13.23-1.el9_6.1
- postgresql:16-9040020260306102041.rhel9
- postgresql-0:13.23-1.el9_4.1
- postgresql:15-9020020260309133405.rhel9
- postgresql:16-8100020260227221401.489197e6
- postgresql18-main-18.3-1.2.hum1
- rhui5/rhua-rhel9:1773670137
- postgresql:13-8060020260309111524.ad008a3a
- postgresql:16-9060020260305153549.rhel9
- postgresql-0:13.23-1.el9_2.1
- postgresql-0:13.23-1.el9_0.1
- postgresql:15-9060020260309125703.rhel9
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
- RHSA-2026:4516
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:4516 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 4 hours ago·verify at source
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