Red Hat Enterprise Linux (Cockpit): Schwachstelle ermöglicht Codeausführung
WID-SEC-2026-1699 · first 28.05.2026 · updated 28.07.2026 · CVSS 8,0
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux (Cockpit) ausnutzen, um beliebigen Programmcode auszuführen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- beliebigen Programmcode auszuführen
Am I affected?
Affected according to the BSI:
- SUSE Linux
- Oracle Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux
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-2026:21390 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21392 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21394 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21395 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21468 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21515 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21516 vom 2026-05-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21647 vom 2026-05-27 access.redhat.com
- PoC github.com
- Red Hat Security Advisory RHSA-2026:21676 vom 2026-05-28 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21700 vom 2026-05-28 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:21700 vom 2026-05-29 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-21700 vom 2026-05-28 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:21468 vom 2026-05-30 errata.build.resf.org
- SUSE Security Update SUSE-SU-2026:21872-1 vom 2026-06-02 lists.suse.com
- Rocky Linux Security Advisory RLSA-2026:21676 vom 2026-06-04 errata.build.resf.org
- SUSE Security Update SUSE-SU-2026:2363-1 vom 2026-06-11 lists.suse.com
- Oracle Linux Security Advisory ELSA-2026-21468 vom 2026-06-25 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-21676 vom 2026-07-17 linux.oracle.com
- SUSE Security Update SUSE-SU-2026:22770-1 vom 2026-07-22 lists.suse.com
- SUSE Security Update SUSE-SU-2026:22837-1 vom 2026-07-27 lists.suse.com
CVE: CVE-2026-4802
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.