Vulnerability DatabaseCVE-2026-21729
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CVE-2026-21729
Published:July 16, 2026
Updated:August 06, 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 Packages
github.com/grafana/loki/v3 (GO):
Affected version(s) >=v3.0.0 <v3.7.0
Fix Suggestion:
Update to version v3.7.0
Related Resources (1)
https://grafana.com/security/security-advisories/cve-2026-21729
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
CWE-770
EPSS
Base Score:
0.26