Red Hat Certificate System for RHEL (Dogtag PKI): Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-2026-3337 · first 14.09.2026 · updated 14.09.2026 · CVSS 5,8
What it is about
Red Hat Certificate System (RHCS) ist ein Enterprise Software System zur Verwaltung einer Public-Key-Infrastruktur (PKI) von Unternehmen. Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Certificate System und Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen.
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
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Red Hat Certificate System 10.4
- Red Hat Enterprise Linux 8.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
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 Security Advisory RHSA-2026:67110 vom 2026-09-13 access.redhat.com
CVE: CVE-2026-18369
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.