Rsync: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-1156 · first 16.04.2026 · updated 05.10.2026 · CVSS 7,4
What it is about
Rsync ist ein Tool, um Dateien und Verzeichnisse zu synchronisieren. Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Rsync ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
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
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Dell NetWorker
- Red Hat Enterprise Linux
- Ubuntu Linux
- SUSE Linux
- Oracle Linux
- Red Hat OpenShift Container Platform
- SUSE openSUSE
- RESF Rocky Linux
- Dell Avamar
- Open Source Rsync 3.0.1-3.4.1
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux Cryostat <4.2.0
and 8 more
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Red Hat Enterprise Linux Cryostat 4.2.0
- IBM QRadar SIEM 7.5.0 UP15 IF04
- Red Hat OpenShift Container Platform 4.13.68
- Dell Secure Connect Gateway 5.36.00.16
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)
- Oracle Linux Security Advisory ELSA-2026-19368 vom 2026-06-29 linux.oracle.com
- GitHub Advisory Database vom 2026-04-15 github.com
- OSS Security Mailing List vom 2026-04-15 www.openwall.com
- Oracle Linux Security Advisory ELSA-2026-17481 vom 2026-05-15 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:17481 vom 2026-05-14 access.redhat.com
- Red Hat Security Advisory RHSA-2026:28887 vom 2026-07-01 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:17481 vom 2026-05-15 errata.build.resf.org
- openSUSE Security Update OPENSUSE-SU-2026:10775-1 vom 2026-05-15 lists.opensuse.org
- openSUSE Security Update OPENSUSE-SU-2026:20754-1 vom 2026-05-19 lists.opensuse.org
- Red Hat Security Advisory RHSA-2026:19152 vom 2026-05-19 access.redhat.com
- SUSE Security Update SUSE-SU-2026:21676-1 vom 2026-05-19 lists.suse.com
- SUSE Security Update SUSE-SU-2026:2002-1 vom 2026-05-19 lists.suse.com
- Red Hat Security Advisory RHSA-2026:19368 vom 2026-05-19 access.redhat.com
- Ubuntu Security Notice USN-8283-1 vom 2026-05-20 ubuntu.com
- SUSE Security Update SUSE-SU-2026:21686-1 vom 2026-05-21 lists.suse.com
- SUSE Security Update SUSE-SU-2026:2038-1 vom 2026-05-21 lists.suse.com
- Red Hat Security Advisory RHSA-2026:20603 vom 2026-05-26 access.redhat.com
- SUSE Security Update SUSE-SU-2026:21726-1 vom 2026-05-22 lists.suse.com
- SUSE Security Update SUSE-SU-2026:21739-1 vom 2026-05-22 lists.suse.com
- SUSE Security Update SUSE-SU-2026:2048-1 vom 2026-05-25 lists.suse.com
- Red Hat Security Advisory RHSA-2026:17789 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20601 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20696 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20604 vom 2026-05-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:20602 vom 2026-05-26 access.redhat.com
and 30 more sources in the original advisory
CVE: CVE-2026-41035
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.