Grafana Tempo: Schwachstelle ermöglicht Offenlegung von Informationen
WID-SEC-2026-0764 · first 18.03.2026 · updated 27.03.2026 · CVSS 7,5
What it is about
Grafana Tempo ist ein hochskalierbares, verteiltes Tracing-Backend. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Grafana Tempo ausnutzen, um Informationen offenzulegen.
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
- Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- SUSE openSUSE
- Grafana Tempo <2.10.3
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Grafana Tempo 2.10.3
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)
- Grafana Security Advisory vom 2026-03-17 grafana.com
- openSUSE Security Update OPENSUSE-SU-2026:10390-1 vom 2026-03-20 lists.opensuse.org
CVE: CVE-2026-28377
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.