Golang Go: Mehrere Schwachstellen
WID-SEC-2026-3841 · first 09.10.2026 · updated 29.10.2026 · CVSS 7,3
What it is about
Go ist eine quelloffene Programmiersprache. Ein Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Daten zu manipulieren und 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
- einen Denial of Service Angriff durchzuführen
- Informationen offenzulegen
- Daten zu manipulieren
- Sicherheitsvorkehrungen zu umgehen
Am I affected?
Affected according to the BSI:
- Amazon Linux 2
- Red Hat Enterprise Linux
- Microsoft Azure Linux azl3
- RESF Rocky Linux
- SUSE Linux
- SUSE openSUSE
- Oracle Linux
- Golang Go <1.27.2
- Golang Go <1.26.9
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Golang Go 1.27.2
- Golang Go 1.26.9
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)
- Google Security Announce vom 2026-10-08 groups.google.com
- OSS Mailing List vom 2026-10-08 seclists.org
- Red Hat Security Advisory RHSA-2026:79720 vom 2026-10-10 access.redhat.com
- Red Hat Security Advisory RHSA-2026:79715 vom 2026-10-09 access.redhat.com
- SUSE Security Update SUSE-SU-2026:4629-1 vom 2026-10-12 lists.suse.com
- SUSE Security Update SUSE-SU-2026:4625-1 vom 2026-10-12 lists.suse.com
- Microsoft Security Update Guide vom 2026-10-14 msrc.microsoft.com
- openSUSE Security Update OPENSUSE-SU-2026:22093-1 vom 2026-10-18 lists.opensuse.org
- openSUSE Security Update OPENSUSE-SU-2026:22095-1 vom 2026-10-18 lists.opensuse.org
- SUSE Security Update SUSE-SU-2026:24239-1 vom 2026-10-20 lists.suse.com
- Red Hat Security Advisory RHSA-2026:86093 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:86203 vom 2026-10-21 access.redhat.com
- Red Hat Security Advisory RHSA-2026:86196 vom 2026-10-21 access.redhat.com
- openSUSE Security Update OPENSUSE-SU-2026:22134-1 vom 2026-10-20 lists.opensuse.org
- Rocky Linux Security Advisory RLSA-2026:86203 vom 2026-10-21 errata.build.resf.org
- SUSE Security Update SUSE-SU-2026:24237-1 vom 2026-10-20 lists.suse.com
- Rocky Linux Security Advisory RLSA-2026:86196 vom 2026-10-22 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-86196 vom 2026-10-21 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:86093 vom 2026-10-22 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-86093 vom 2026-10-21 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:88188 vom 2026-10-22 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:88354 vom 2026-10-23 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-88189 vom 2026-10-23 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-88188 vom 2026-10-23 linux.oracle.com
- Red Hat Security Advisory RHSA-2026:88189 vom 2026-10-22 access.redhat.com
and 90 more sources in the original advisory
CVE: CVE-2026-56857, CVE-2026-56866, CVE-2026-78659, CVE-2026-78660, CVE-2026-78663, CVE-2026-78667, CVE-2026-78669, CVE-2026-94439, CVE-2026-94440, CVE-2026-94444, CVE-2026-94447, CVE-2026-94448, CVE-2026-97030, CVE-2026-97031, CVE-2026-97032
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.