{"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": {"cna": {"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", "versions": [{"status": "affected", "version": "0", "lessThan": "3.31.6", "versionType": "semver"}, {"status": "affected", "version": "3.32.0", "lessThan": "3.32.1", "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": "3.22.5", "versionType": "semver"}], "defaultStatus": "unaffected"}, {"vendor": "Tigera", "product": "Calico Cloud", "versions": [{"status": "affected", "version": "0", "lessThan": "22.4.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"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.", "supportingMedia": [{"type": "text/html", "base64": false, "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", "tags": ["patch"]}, {"url": "https://github.com/projectcalico/calico/pull/12737", "tags": ["patch"]}, {"url": "https://www.tigera.io/security-bulletins/tta-2026-006/", "tags": ["vendor-advisory"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "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": {"engine": "Vulnogram 1.0.2"}}, "adp": [{"metrics": [{"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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