Red Hat Enterprise Linux (perl-HTTP-Daemon): Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit den Rechten des Dienstes
WID-SEC-2026-2218 · first 07.07.2026 · updated 20.07.2026 · CVSS 8,1
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 beliebigen Programmcode mit den Rechten des Dienstes auszuführen.
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
- beliebigen Programmcode mit den Rechten des Dienstes auszuführen
Am I affected?
Affected according to the BSI:
- Oracle Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 10
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-2026:36187 vom 2026-07-06 access.redhat.com
- Red Hat Security Advisory RHSA-2026:36188 vom 2026-07-06 access.redhat.com
- Red Hat Security Advisory RHSA-2026:36189 vom 2026-07-06 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-36187 vom 2026-07-08 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:36188 vom 2026-07-08 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:36187 vom 2026-07-08 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:36189 vom 2026-07-08 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-36188 vom 2026-07-08 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-36189 vom 2026-07-17 linux.oracle.com
CVE: CVE-2026-8450
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.