6.5

CVE-2026-27878

Tempo TraceQL query with exemplar hint could result in unbounded memory usage

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Grafana ≫ Tempo Version >= 2.6.0 < 2.8.4
Grafana ≫ Tempo Version >= 2.9.0 < 2.9.2
Grafana ≫ Tempo Version >= 2.10.0 < 2.10.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.141
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security@grafana.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-400 Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource.

https://grafana.com/security/security-advisories/cve-2026-27878
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