Red Hat Enterprise Linux (python-tornado): Mehrere Schwachstellen
WID-SEC-2026-3870 · first 12.10.2026 · updated 27.10.2026 · CVSS 7,7
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein Angreifer kann mehrere Schwachstellen in python-tornado in Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen oder einen Denial of Service zu verursachen
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
- Informationen offenzulegen oder einen Denial of Service zu verursachen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- Red Hat Enterprise Linux tornado
- SUSE Linux
- SUSE openSUSE
- 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-2026:80741 vom 2026-10-11 access.redhat.com
- RedHat Customer Portal vom 2026-10-11 access.redhat.com
- RedHat Customer Portal vom 2026-10-11 access.redhat.com
- RedHat Customer Portal vom 2026-10-11 access.redhat.com
- Amazon Linux Security Advisory ALAS2-2026-3976 vom 2026-10-13 alas.aws.amazon.com
- Amazon Linux Security Advisory ALAS2-2026-3975 vom 2026-10-13 alas.aws.amazon.com
- SUSE Security Update SUSE-SU-2026:24121-1 vom 2026-10-13 lists.suse.com
- openSUSE Security Update OPENSUSE-SU-2026:22059-1 vom 2026-10-18 lists.opensuse.org
- SUSE Security Update SUSE-SU-2026:24207-1 vom 2026-10-20 lists.suse.com
- Ubuntu Security Notice USN-8952-1 vom 2026-10-22 ubuntu.com
- Red Hat Security Advisory RHSA-2026:90283 vom 2026-10-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:90777 vom 2026-10-27 access.redhat.com
CVE: CVE-2026-49853, CVE-2026-49855, CVE-2026-91990
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.