PostgreSQL JDBC Driver: Schwachstelle ermöglicht Denial of Service
WID-SEC-2026-1754 · first 01.06.2026 · updated 11.09.2026 · CVSS 7,5
What it is about
Der PostgreSQL JDBC Driver ermöglicht Java-Anwendungen die Verbindung und Interaktion mit PostgreSQL-Datenbanken. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in PostgreSQL JDBC Driver ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- SUSE Linux
- Oracle Linux
- SUSE openSUSE
- RESF Rocky Linux
- Red Hat Enterprise Linux
- Open Source PostgreSQL JDBC Driver <42.7.11
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Open Source PostgreSQL JDBC Driver 42.7.11
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Red Hat Bugzilla #2463857 vom 2026-05-31 bugzilla.redhat.com
- Red Hat Security Advisory RHSA-2026:22304 vom 2026-05-31 access.redhat.com
- openSUSE Security Update OPENSUSE-SU-2026:20847-1 vom 2026-06-01 lists.opensuse.org
- Rocky Linux Security Advisory RLSA-2026:22304 vom 2026-06-02 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:24348 vom 2026-06-08 access.redhat.com
- SUSE Security Update SUSE-SU-2026:22000-1 vom 2026-06-08 lists.suse.com
- Red Hat Security Advisory RHSA-2026:25030 vom 2026-06-10 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:25030 vom 2026-06-11 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-25030 vom 2026-06-11 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:24348 vom 2026-06-11 errata.build.resf.org
- openSUSE Security Update OPENSUSE-SU-2026:11001-1 vom 2026-06-13 lists.opensuse.org
- Oracle Linux Security Advisory ELSA-2026-22304 vom 2026-06-25 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-24348 vom 2026-07-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:52929 vom 2026-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:52930 vom 2026-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:52928 vom 2026-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:52978 vom 2026-08-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:54532 vom 2026-08-13 access.redhat.com
- Red Hat Security Advisory RHSA-2026:59277 vom 2026-08-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:59278 vom 2026-08-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:66488 vom 2026-09-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:66545 vom 2026-09-11 access.redhat.com
CVE: CVE-2026-42198
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.