Red Hat Enterprise Linux (xmlrpc-c): Schwachstelle ermöglicht Cross-Site Scripting
WID-SEC-2026-3078 · first 31.08.2026 · updated 14.10.2026 · CVSS 7,4
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Cross-Site Scripting Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- IBM QRadar SIEM
- RESF Rocky Linux
- SUSE Linux
- Oracle Linux
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
- Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
- Red Hat Enterprise Linux 7 Extended Lifecycle Support
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service
and 2 more
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-2026:61231 vom 2026-08-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:61231 vom 2026-08-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:61233 vom 2026-08-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:61234 vom 2026-08-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:61235 vom 2026-08-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:61235 vom 2026-08-30 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:61316 vom 2026-09-01 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-61316 vom 2026-09-02 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:64772 vom 2026-09-08 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-64772 vom 2026-09-09 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:64772 vom 2026-09-09 errata.build.resf.org
- SUSE Security Update SUSE-SU-2026:23311-1 vom 2026-09-10 lists.suse.com
- Oracle Linux Security Advisory ELSA-2026-61234 vom 2026-09-29 linux.oracle.com
- IBM Security Bulletin 7292240 vom 2026-10-13 www.ibm.com
CVE: CVE-2026-15928
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.