# RHSA-2026:0456: postgresql16 security update

RHSA-2026:0456, released November 13, 2025, fixes 2 CVEs in postgresql16 (version 16.11-1.el10_0). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-0456
- Platform: Linux
- Released: Nov 13, 2025
- Priority: High (Closes CVE-2025-12818, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:0456

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [postgresql16](https://patchblox.com/security/data/product/linux/postgresql16.md) | RHEL 10 | 16.11-1.el10_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-12818](https://patchblox.com/security/data/cve/CVE-2025-12818.md) | High | PostgreSQL libpq undersizes allocations, via integer wraparound | 7.5 | 0.0036 |  |
| [CVE-2025-12817](https://patchblox.com/security/data/cve/CVE-2025-12817.md) | High | PostgreSQL CREATE STATISTICS does not check for schema CREATE privilege | 7.5 | 0.0024 |  |

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Data as of 2026-11-07T12:40:37Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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