CVE-2026-27878
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Jun 19, 2026
Vendor
unknown
Description
A TraceQL query in Grafana Tempo with a large exemplars hint value can cause the Tempo instance to allocate an excessive amount of memory, resulting in an out-of-memory crash. This could allow an authenticated user to trigger a denial of service against the Tempo service.