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CVE-2026-21726

🗓️ 15 Apr 2026 19:24:31Reported by GRAFANAType 
cve
 cve
🔗 web.nvd.nist.gov👁 16 Views🌐 WEB

CVE-2026-21726 enables Loki path traversal via double encoding after a single URL decode.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-21726
15 Apr 202619:24
attackerkb
AlpineLinux
CVE-2026-21726
15 Apr 202619:24
alpinelinux
Chainguard
CVE-2026-21726 vulnerabilities
18 Apr 202601:17
cgr
CNNVD
Grafana Loki 安全漏洞
15 Apr 202600:00
cnnvd
Cvelist
CVE-2026-21726 Loki Path Traversal - CVE-2021-36156 Bypass
15 Apr 202619:24
cvelist
EUVD
EUVD-2026-23100
15 Apr 202621:30
euvd
Github Security Blog
Grafana Loki Path Traversal - CVE-2021-36156 Bypass
15 Apr 202621:30
github
Grafana
Grafana Loki Path Traversal - CVE-2021-36156 Bypass
26 Jan 202600:00
grafana
NVD
CVE-2026-21726
15 Apr 202620:16
nvd
OSV
CGA-W6Q8-CJ25-57RP
17 Apr 202621:15
osv
Rows per page
NVD
Node
grafanalokiRange<3.6.4
[
  {
    "vendor": "Grafana",
    "product": "Loki",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "2.3.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "3.5.9"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
namespacepath/loki/api/v1/rules/{namespace}Path traversal via double-encoding after a single URL decode in the namespace path parameter.CWE-22

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22 Jun 2026 16:31Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
EPSS0.00409
SSVC
16