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CVE-2026-33816: CVE-2026-33816 in github.com/jackc/pgx

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-07 · updated 2026-10-26
• Weakness: CWE-787

Description

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

Affected products

• jackc pgx: before 5.9.0 — fixed in 5.9.0

How to fix

Upgrade to a fixed version: jackc pgx 5.9.0. Check the vendor advisory for mitigations.

References

• https://pkg.go.dev/vuln/GO-2026-4772
• https://access.redhat.com/errata/RHSA-2026:11070
• https://access.redhat.com/errata/RHSA-2026:11217
• https://access.redhat.com/errata/RHSA-2026:13791
• https://access.redhat.com/errata/RHSA-2026:13829
• https://access.redhat.com/errata/RHSA-2026:13907
• https://access.redhat.com/errata/RHSA-2026:17789
• https://access.redhat.com/errata/RHSA-2026:19137
• https://access.redhat.com/errata/RHSA-2026:22423
• https://access.redhat.com/errata/RHSA-2026:24475
• https://access.redhat.com/errata/RHSA-2026:24479
• https://access.redhat.com/errata/RHSA-2026:24482

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