Red Hat Enterprise Linux (FreeIPA): Mehrere Schwachstellen
WID-SEC-2026-3552 · first 24.09.2026 · updated 26.10.2026 · CVSS 9,8
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Denial-of-Service-Zustände herbeizuführen, Cross-Site-Scripting-Angriffe durchzuführen, Informationen offenzulegen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen und Berechtigungen zu erweitern (einschließlich des Erwerbs von Administratorrechten).
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- Denial-of-Service-Zustände herbeizuführen
- Cross-Site-Scripting-Angriffe durchzuführen
- Informationen offenzulegen
- Daten zu manipulieren
- Sicherheitsmaßnahmen zu umgehen
- Berechtigungen zu erweitern (einschließlich des Erwerbs von Administratorrechten)
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- RESF Rocky Linux
- Oracle Linux
- Red Hat Enterprise Linux 9
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-2026:70564 vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- RedHat Customer Portal vom 2026-09-23 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:70564 vom 2026-09-24 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-70564 vom 2026-09-24 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:72279 vom 2026-09-28 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-72279 vom 2026-09-28 linux.oracle.com
- Amazon Linux Security Advisory ALAS2-2026-3950 vom 2026-09-29 alas.aws.amazon.com
- Rocky Linux Security Advisory RLSA-2026:72279 vom 2026-09-29 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:83460 vom 2026-10-15 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83085 vom 2026-10-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83084 vom 2026-10-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83083 vom 2026-10-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:82935 vom 2026-10-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:83461 vom 2026-10-15 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-83460 vom 2026-10-16 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:89836 vom 2026-10-26 access.redhat.com
CVE: CVE-2026-11861, CVE-2026-13097, CVE-2026-18147, CVE-2026-19550, CVE-2026-73197, CVE-2026-73198, CVE-2026-76578, CVE-2026-79678
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.