CVE-2026-21728

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.

Score
CVSS 3.1 7.5 High
Status
Modified - security@grafana.com
Published
2026-04-24
Last modified
2026-10-26
Weaknesses
CWE-400, CWE-770

Affected products

References

 
 
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