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CVE-2026-6540

🗓️ 30 Jul 2026 14:45:04Reported by TigeraType 
cve
 cve
🔗 web.nvd.nist.gov👁 13 Views

Calico policy bypass via unnormalized HTTP paths lets traversal or encoded slashes reach restricted endpoints.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-6540
30 Jul 202614:45
attackerkb
cvelist
Cvelist
CVE-2026-6540 L7 policy bypass via unnormalized HTTP path matching
30 Jul 202614:45
cvelist
euvd
EUVD
EUVD-2026-51153
30 Jul 202614:45
euvd
nvd
NVD
CVE-2026-6540
30 Jul 202615:16
nvd
ptsecurity
Positive Technologies
PT-2026-66493
30 Jul 202600:00
ptsecurity
vulnrichment
Vulnrichment
CVE-2026-6540 L7 policy bypass via unnormalized HTTP path matching
30 Jul 202614:45
vulnrichment
[
  {
    "vendor": "Tigera",
    "product": "Calico",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.31.6",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Tigera",
    "product": "Calico Enterprise",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.21.7",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.22.0",
        "lessThan": "3.22.4",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Tigera",
    "product": "Calico Cloud",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "22.4.0",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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30 Jul 2026 17:16Current
5.9Medium risk
Vulners AI Score5.9
CVSS 47.9
SSVC
13