Advisoriesby IbisGrafana LabsCVE-2026-21729
Grafana Labs Loki: resource exhaustion
Fix: upgrade to v3.7.0 or later
Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Loki Product | >= v3.0.0, < v3.7.0 | v3.7.0 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-770