CVE-2026-21729
Loki detected_fields query limits results in unbounded memory allocation
HIGH
7.5
CVSS Score
Published: July 16, 2026 at 03:12 AM UTC
Updated: October 24, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLoki
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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit
Description
Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.5HIGHGRAFANA
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-770
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