# RLSA-2026:0594: libpq security update

RLSA-2026:0594, released January 15, 2026, fixes 1 CVE in libpq (version 0:16.11-3.el10_1). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rlsa-2026-0594
- Platform: Linux
- Released: Jan 15, 2026
- Priority: High (Closes CVE-2025-12818, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://errata.rockylinux.org/RLSA-2026:0594

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libpq](https://patchblox.com/security/data/product/linux/libpq.md) | rocky 10 | 0:16.11-3.el10_1 |

## 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 |  |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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