Loki large limits memory alloc DoS
CVE-2026-21729 Published on July 16, 2026
Loki detected_fields query limits results in unbounded memory allocation
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
Grafana Loki:- Version v3.0.0 and below v3.7.0 is affected.