Grafana LabsCVE-2026-21729
Grafana Labs Loki: resource exhaustion
High7.5CVE-2026-21729 · Published Jul 16, 2026
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
More Grafana Labs advisories
All Grafana Labs| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 24 | Grafana IRM: improper access control | High7.1 | No fix yet |
| Jul 23 | Grafana OSS: resource exhaustion | Medium5.3 | No fix yet |
| Jul 15 | Grafana MCP Server: server-side request forgery | High8.6 | No fix yet |
| Jul 10 | Grafana OSS: cross-site scripting | Medium6.8 | No fix yet |
| Jul 10 | Grafana OSS: denial of service | Medium5.3 | No fix yet |
| Jul 10 | Grafana OSS: resource exhaustion | High7.5 | No fix yet |