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CVE-2026-21729 Loki detected_fields query limits results in unbounded memory allocation

🗓️ 16 Jul 2026 03:12:07Reported by GRAFANAType 
cvelist
 cvelist
🔗 www.cve.org👁 40 Views

CVE-2026-21729: Loki detected_fields large limits cause unbounded memory allocation, risking service impact.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-21729
16 Jul 202603:12
attackerkb
bdu_fstec
BDU FSTEC
The vulnerability of the Query Engine component of the Loki logging aggregation and storage system allows a attacker to trigger a service failure.
12 Aug 202600:00
bdu_fstec
circl
Circl
CVE-2026-21729
16 Jul 202603:44
circl
cve
CVE
CVE-2026-21729
16 Jul 202603:12
cve
euvd
EUVD
EUVD-2026-44862
16 Jul 202603:12
euvd
grafana
Grafana
Loki detected_fields query limits results in unbounded memory allocation
15 Jul 202600:00
grafana
nvd
NVD
CVE-2026-21729
16 Jul 202604:17
nvd
osv
OSV
MINI-24X5-3XMM-QXHH
22 Jul 202616:16
osv
osv
OSV
MINI-5V43-GWJ7-P3HV
22 Jul 202616:17
osv
osv
OSV
MINI-8QGG-J26M-93QX
22 Jul 202616:16
osv
Rows per page
[
  {
    "vendor": "Grafana",
    "product": "Loki",
    "platforms": [
      "OnPrem",
      "Cloud"
    ],
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "v3.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "v3.7.0"
      }
    ]
  }
]

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24 Aug 2026 13:52Current
CVSS 3.17.5
EPSS0.0046
40