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Vulnerability record · CVE-2026-21729 · published 16 July 2026

CVE-2026-21729: Allocation without limits vulnerability

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

7.5 CVSS 3.1 High EPSS 0.46% · top 62.6% CWE-770 · Allocation without limits Awaiting Analysis
7.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
16 Jul 2026Last modified by NVD

Description

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

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

References

LinkTags
https://grafana.com/security/security-advisories/cve-2026-21729

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21729), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.