{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102260", "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "state": "PUBLISHED", "assignerShortName": "HashiCorp", "dateReserved": "2026-09-28T19:48:07.925Z", "datePublished": "2026-10-29T18:05:47.414Z", "dateUpdated": "2026-10-29T18:05:47.414Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["64 bit", "32 bit", "x86", "ARM", "MacOS", "Windows", "Linux"], "product": "Nomad", "repo": "https://github.com/hashicorp/nomad", "vendor": "HashiCorp", "versions": [{"lessThan": "2.1.0", "status": "affected", "version": "0.11.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "platforms": ["64 bit", "32 bit", "x86", "ARM", "MacOS", "Windows", "Linux"], "product": "Nomad Enterprise", "repo": "https://github.com/hashicorp/nomad", "vendor": "HashiCorp", "versions": [{"changes": [{"at": "1.11.12", "status": "unaffected"}, {"at": "1.10.18", "status": "unaffected"}], "lessThan": "2.1.0", "status": "affected", "version": "0.11.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "value": "This issue was reported to HashiCorp by Wenhao Wu (Southeast University)."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>HashiCorp Nomad and Nomad Enterprise are vulnerable to cross-namespace authorization bypasses in several read-only API endpoints that may allow an authenticated user with read permissions in one namespace to view information about objects in other namespaces. This vulnerability (CVE-2026-102260) is fixed in Nomad Community Edition 2.1.0 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18.</p><br/>"}], "value": "HashiCorp Nomad and Nomad Enterprise are vulnerable to cross-namespace authorization bypasses in several read-only API endpoints that may allow an authenticated user with read permissions in one namespace to view information about objects in other namespaces. This vulnerability (CVE-2026-102260) is fixed in Nomad Community Edition 2.1.0 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18."}], "impacts": [{"capecId": "CAPEC-1", "descriptions": [{"lang": "en", "value": "CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs"}]}], "metrics": [{"cvssV3_1": {"baseScore": 4.3, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "description": "CWE-863: Incorrect Authorization", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "shortName": "HashiCorp", "dateUpdated": "2026-10-29T18:05:47.414Z"}, "references": [{"url": "https://discuss.hashicorp.com/t/hcsec-2026-51-nomad-vulnerable-to-cross-namespace-information-disclosure-in-multiple-endpoints/77929"}], "source": {"advisory": "HCSEC-2026-51", "discovery": "EXTERNAL"}, "title": "Nomad vulnerable to cross-namespace information disclosure in multiple endpoints"}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "platforms": ["64 bit", "32 bit", "x86", "ARM", "MacOS", "Windows", "Linux"], "product": "Nomad", "repo": "https://github.com/hashicorp/nomad", "vendor": "HashiCorp", "versions": [{"lessThan": "2.1.0", "status": "affected", "version": "0.11.0", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "platforms": ["64 bit", "32 bit", "x86", "ARM", "MacOS", "Windows", "Linux"], "product": "Nomad Enterprise", "repo": "https://github.com/hashicorp/nomad", "vendor": "HashiCorp", "versions": [{"changes": [{"at": "1.11.12", "status": "unaffected"}, {"at": "1.10.18", "status": "unaffected"}], "lessThan": "2.1.0", "status": "affected", "version": "0.11.0", "versionType": "semver"}]}], "source": "security@hashicorp.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HashiCorp Nomad and Nomad Enterprise are vulnerable to cross-namespace authorization bypasses in several read-only API endpoints that may allow an authenticated user with read permissions in one namespace to view information about objects in other namespaces. This vulnerability (CVE-2026-102260) is fixed in Nomad Community Edition 2.1.0 and Nomad Enterprise 2.1.0, 1.11.12, and 1.10.18."}], "id": "CVE-2026-102260", "lastModified": "2026-10-29T18:17:21.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "security@hashicorp.com", "type": "Secondary"}]}, "published": "2026-10-29T18:17:21.160", "references": [{"source": "security@hashicorp.com", "url": "https://discuss.hashicorp.com/t/hcsec-2026-51-nomad-vulnerable-to-cross-namespace-information-disclosure-in-multiple-endpoints/77929"}], "sourceIdentifier": "security@hashicorp.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security@hashicorp.com", "type": "Secondary"}]}

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