Golang Go: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen
WID-SEC-2026-4049 · first 20.10.2026 · updated 29.10.2026 · CVSS 9,1
What it is about
Go ist eine quelloffene Programmiersprache. Ein Angreifer kann eine Schwachstelle in Golang Go ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
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
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- Fedora Linux
- Broadcom Fabric OS
- Gentoo Linux
- RESF Rocky Linux
- SUSE Linux
- SUSE openSUSE
- Oracle Linux
- Golang Go <1.27.3
- Golang Go <1.26.10
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Golang Go 1.27.3
- Golang Go 1.26.10
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)
- Golang Mailing List vom 2026-10-19 groups.google.com
- GitHub Golang Issues vom 2026-10-19 github.com
- Red Hat Security Advisory RHSA-2026:86196 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:85899 vom 2026-10-20 access.redhat.com
- Gentoo Linux Security Advisory GLSA-202610-01 vom 2026-10-21 security.gentoo.org
- Rocky Linux Security Advisory RLSA-2026:86203 vom 2026-10-21 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:86029 vom 2026-10-20 access.redhat.com
- Red Hat Security Advisory RHSA-2026:86093 vom 2026-10-21 access.redhat.com
- Fedora Security Advisory FEDORA-2026-1FFBF97EBA vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-8EEFFA4C43 vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2026-EC2CE9D2EF vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-18BA500ADB vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-2D8A0ED237 vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-93A23666B1 vom 2026-10-20 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-EPEL-2026-D3EC7F00E2 vom 2026-10-20 bodhi.fedoraproject.org
- Red Hat Security Advisory RHSA-2026:86738 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:86733 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:86776 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:87092 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:87153 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:87076 vom 2026-10-21 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-500450 vom 2026-10-21 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-500451 vom 2026-10-21 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:87075 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:87065 vom 2026-10-21 access.redhat.com
and 173 more sources in the original advisory
CVE: CVE-2026-111943
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.