Red Hat Enterprise Linux (sssd, tftp, ansible-collection-ansible-posix): Mehrere Schwachstellen
WID-SEC-2026-3848 · first 09.10.2026 · updated 14.10.2026 · CVSS 7,5
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 seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen und einen Denial-of-Service-Zustand auszulösen.
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
- seine Privilegien zu erhöhen
- Sicherheitsmaßnahmen zu umgehen
- einen Denial-of-Service-Zustand auszulösen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- RESF Rocky Linux
- Oracle Linux
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 10.0 Extended Update Support
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-2026:77534 vom 2026-10-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:78952 vom 2026-10-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79112 vom 2026-10-08 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-78952 vom 2026-10-09 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:77534 vom 2026-10-09 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:80663 vom 2026-10-12 access.redhat.com
- Red Hat Security Advisory RHSA-2026:80508 vom 2026-10-12 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-80663 vom 2026-10-12 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:82280 vom 2026-10-13 access.redhat.com
- Red Hat Security Advisory RHSA-2026:82339 vom 2026-10-13 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:82280 vom 2026-10-13 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:80663 vom 2026-10-13 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-82280 vom 2026-10-13 linux.oracle.com
CVE: CVE-2026-11837, CVE-2026-85234, CVE-2026-87853
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.