Red Hat Enterprise Linux (perl-IO-Compress): Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit den Rechten des Dienstes
WID-SEC-2026-2063 · first 25.06.2026 · updated 05.10.2026 · CVSS 7,8
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
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:
- Debian Linux
- Red Hat Enterprise Linux
- Oracle Linux
- IBM Tivoli Network Manager IP Edition
- IBM QRadar SIEM
- RESF Rocky Linux
- Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
- 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-2026:30860 vom 2026-06-29 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:30851 vom 2026-06-29 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-30858 vom 2026-06-29 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:30859 vom 2026-07-01 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-30851 vom 2026-07-01 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-30859 vom 2026-06-30 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:30860 vom 2026-07-05 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:29182 vom 2026-06-24 access.redhat.com
- Red Hat Security Advisory RHSA-2026:29867 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:29941 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:30115 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:30086 vom 2026-06-25 access.redhat.com
- Red Hat Security Advisory RHSA-2026:30085 vom 2026-06-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:30843 vom 2026-06-29 access.redhat.com
- IBM Security Bulletin 7279718 vom 2026-07-10 www.ibm.com
- Oracle Linux Security Advisory ELSA-2026-30860 vom 2026-07-17 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-30843 vom 2026-07-22 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:30858 vom 2026-07-29 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:50262 vom 2026-08-04 access.redhat.com
- IBM Security Bulletin 7282618 vom 2026-08-05 www.ibm.com
- Oracle Linux Security Advisory ELSA-2026-48225 vom 2026-08-21 oss.oracle.com
- Oracle Linux Security Advisory ELSA-2026-48225 vom 2026-08-21 linux.oracle.com
- Ubuntu Security Notice USN-8684-1 vom 2026-08-27 ubuntu.com
- Oracle Linux Security Advisory ELSA-2026-67278 vom 2026-09-16 linux.oracle.com
- Debian Security Advisory DLA-4812 vom 2026-10-02 lists.debian.org
and 1 more sources in the original advisory
CVE: CVE-2026-48962
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.