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CVE-2026-21728

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CVE-2026-21728

Published: Apr 24, 2026

Modified: May 13, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

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).

VendorProductVersions

Grafana

Tempo

affected
v1.3.0 - < v2.11.0

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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