What is RHSA-2026:22304?

RHSA-2026:22304 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: postgresql-jdbc security update

Which CVE IDs does RHSA-2026:22304 cover?

RHSA-2026:22304 covers the following CVE IDs: CVE-2026-42198. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:22304?

RHSA-2026:22304 has a CVSS v3 base score of 7.5, published by Red Hat Product Security.

Which products are affected by RHSA-2026:22304?

RHSA-2026:22304 affects 3 products, including: Red Hat Enterprise Linux AppStream (v. 9); postgresql-jdbc-0:42.2.28-2.el9_8.2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9); postgresql-jdbc-0:42.2.28-2.el9_8.2.src as a component of Red Hat Enterprise Linux AppStream (v. 9).

RHSA-2026:22304HighCVSS 7.5

Red Hat Security Advisory: postgresql-jdbc security update

Vendor

Red Hat Product Security

Published

June 1, 2026

Last Modified

August 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-42198 →

📋 Description

CVE-2026-42198 — jdbc.postgresql.org: pgjdbc: Client-side Denial of Service via malicious SCRAM-SHA-256 authentication

🎯 Affected products3

Red Hat Enterprise Linux AppStream (v. 9)
postgresql-jdbc-0:42.2.28-2.el9_8.2.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
postgresql-jdbc-0:42.2.28-2.el9_8.2.src as a component of Red Hat Enterprise Linux AppStream (v. 9)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (4)

selfhttps://access.redhat.com/errata/RHSA-2026:22304
externalhttps://access.redhat.com/security/updates/classification/#important
externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2463857
selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_22304.json