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Vulnerabilities CVE-2026-21728

CVE-2026-21728

High
Open
TLP:CLEAR

Tempo query limit results in unbounded memory allocation

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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). Alternatively, automatically restart the service.

Details

CVSS Score
7.5
EPSS Score
0.64%

47.3th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Confidence
90%
Published
Apr 24, 2026
Last Modified
Aug 12, 2026
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