All vulnerabilities

CVE-2026-21728

Grafana Tempo has an Uncontrolled Resource Consumption issue

Description

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).

Patch Available

Fix available through Seal Security. No upgrade required, protect your application instantly.

Fix without upgrading
Score
7.5
Severity
High
Ecosystem
GO
Publish Date
April 24, 2026
Modified Date
May 5, 2026
Score Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Versions