CVE-2026-21729

Loki detected_fields query limits results in unbounded memory allocation

State
Published
Severity
7.5 High
Published
Jul 16, 2026
Updated
Aug 27, 2026
Reserved
Jan 5, 2026

Read the record on cve.org

Description

Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HGRAFANA

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
LokiGrafana
  • v3.0.0 to before v3.7.0Affected

References

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