Red Hat Enterprise Linux (Flatpak): Mehrere Schwachstellen
WID-SEC-2026-1732 · first 29.05.2026 · updated 14.10.2026 · CVSS 9,0
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein authentisierter Angreifer kann mehrere Schwachstellen im Flatpak Paket von Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode auszuführen und um Dateien zu löschen.
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
- beliebigen Programmcode auszuführen
- Dateien zu löschen
Am I affected?
Affected according to the BSI:
- Oracle Linux
- RESF Rocky Linux
- Gentoo Linux
- Red Hat Enterprise Linux
- Ubuntu 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-2026:21755 vom 2026-05-28 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21756 vom 2026-05-28 access.redhat.com
- Red Hat Security Advisory RHSA-2026:21757 vom 2026-05-28 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-21756 vom 2026-05-29 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:21756 vom 2026-05-29 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:21757 vom 2026-06-04 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:23420 vom 2026-06-04 access.redhat.com
- Red Hat Security Advisory RHSA-2026:23419 vom 2026-06-04 access.redhat.com
- Red Hat Security Advisory RHSA-2026:23417 vom 2026-06-04 access.redhat.com
- Red Hat Security Advisory RHSA-2026:23418 vom 2026-06-04 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:21755 vom 2026-06-05 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:25068 vom 2026-06-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:25381 vom 2026-06-11 access.redhat.com
- Red Hat Security Advisory RHSA-2026:35843 vom 2026-07-06 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-21755 vom 2026-06-25 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:30901 vom 2026-06-29 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-21757 vom 2026-07-17 linux.oracle.com
- Gentoo Linux Security Advisory GLSA-202608-06 vom 2026-08-14 security.gentoo.org
- Ubuntu Security Notice USN-8741-1 vom 2026-09-10 ubuntu.com
- Oracle Linux Security Advisory ELSA-2026-35843 vom 2026-10-14 linux.oracle.com
CVE: CVE-2026-34078, CVE-2026-34079
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.