pgx contains memory-safety vulnerability

CRITICAL 9.8CVE-2026-33815 · GHSA-xgrm-4fwx-7qm8 · GO-2026-4771 · Published 07/04/2026 · updated 26/10/2026

In short

CVE-2026-33815 is a CRITICAL (CVSS 9.8) vulnerability affecting github.com/jackc/pgx/v5.
Chance of exploitation in the next 30 days (EPSS): 0.60%, higher than 49.0% of all vulnerabilities.
Fix: update to 5.9.0 or later.

Package	Affected versions	Patched versions
github.com/jackc/pgx/v5 Go	`< 5.9.0`	`5.9.0`

pgx is a pure Go driver and toolkit for PostgreSQL. pgx prior to v5.9.0 contains a memory-safety vulnerability.

NVD description

Memory-safety vulnerability in github.com/jackc/pgx/v5.

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