CVE-2026-27878
Tempo TraceQL query with exemplar hint could result in unbounded memory usage
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | grafana |
| Product | enterprise traces (get) |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 19, 2026 |
| Last Updated | Jun 19, 2026 |
Stay Ahead of the Next One
Get instant alerts for grafana enterprise traces (get)
Be the first to know when new medium vulnerabilities affecting grafana enterprise traces (get) are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Grafana / Enterprise Traces (GET)
2.6.1 < 2.8.8
Grafana / Tempo
2.6.0 < 2.10.2