CVE-2026-21729
Loki detected_fields query limits results in unbounded memory allocation
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.
| Vendor | grafana |
| Product | loki |
| Ecosystems | |
| Industries | Technology |
| Published | Jul 16, 2026 |
| Last Updated | Jul 16, 2026 |
Stay Ahead of the Next One
Get instant alerts for grafana loki
Be the first to know when new high vulnerabilities affecting grafana loki are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Grafana / Loki
v3.0.0 < v3.7.0