Grafana Enterprise Traces (GET) vulnerabilities

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Published CVEs affecting Grafana Enterprise Traces (GET): 2 record(s), with affected versions and fixes.

CVE-2026-27878 Medium · 6.5 CWE-400 Jun 19, 2026

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.

CVE-2026-21728 High · 7.5 CWE-400 Apr 24, 2026

Tempo query limit results in unbounded memory allocation

Tempo queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy. Mitigation can be done by setting max_result_limit in the search config, e.g. to 262144 (2^18). Alternatively, automatically restart the service.