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vuln-cve/data/2026/41xxx/CVE-2026-41187.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-41187",
"assignerOrgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
"state": "PUBLISHED",
"assignerShortName": "Tigera",
"dateReserved": "2026-04-17T17:41:35.905Z",
"datePublished": "2026-07-30T14:45:04.247Z",
"dateUpdated": "2026-07-30T16:11:27.341Z"
},
"containers": {
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"providerMetadata": {
"orgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
"shortName": "Tigera",
"dateUpdated": "2026-07-30T14:45:04.247Z"
},
"title": "Calico Tier Authorization Bypass via DeleteCollection",
"datePublic": "2026-07-30T16:00:00.000Z",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-285",
"description": "CWE-285 Improper Authorization",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-863",
"description": "CWE-863 Incorrect Authorization",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "Tigera",
"product": "Calico",
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"version": "0",
"lessThan": "3.31.6",
"versionType": "semver"
},
{
"status": "affected",
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}
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{
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{
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"versionType": "semver"
}
],
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],
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{
"lang": "en",
"value": "Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard verbs on tier-scoped policy resources can bulk-delete policies in tiers they otherwise have no rights on, breaking the tier authorization boundary.",
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{
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"value": "<p>Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard verbs on tier-scoped policy resources can bulk-delete policies in tiers they otherwise have no rights on, breaking the tier authorization boundary.</p>"
}
]
}
],
"references": [
{
"url": "https://github.com/projectcalico/calico/pull/12731",
"tags": [
"patch"
]
},
{
"url": "https://github.com/projectcalico/calico/pull/12735",
"tags": [
"patch"
]
},
{
"url": "https://github.com/projectcalico/calico/pull/12736",
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"patch"
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},
{
"url": "https://github.com/projectcalico/calico/pull/12737",
"tags": [
"patch"
]
},
{
"url": "https://www.tigera.io/security-bulletins/tta-2026-006/",
"tags": [
"vendor-advisory"
]
}
],
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{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
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],
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"subIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "LOW",
"subAvailabilityImpact": "HIGH",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "MEDIUM",
"baseScore": 6.2,
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:L/SA:H"
}
}
],
"credits": [
{
"lang": "en",
"value": "Behnam Shobiri",
"type": "finder"
},
{
"lang": "en",
"value": "Mazdak Nasab",
"type": "remediation developer"
},
{
"lang": "en",
"value": "Anthony Tam",
"type": "remediation reviewer"
},
{
"lang": "en",
"value": "Matt Dupre",
"type": "remediation reviewer"
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
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"adp": [
{
"metrics": [
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"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-30T16:11:20.822241Z",
"id": "CVE-2026-41187",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-30T16:11:27.341Z"
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]
}
}