{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6959", "assignerOrgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "state": "PUBLISHED", "assignerShortName": "HashiCorp", "dateReserved": "2026-04-24T14:29:55.377Z", "datePublished": "2026-05-12T18:59:09.029Z", "dateUpdated": "2026-05-12T20:16:15.200Z"}, "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": "2.0.1", "status": "affected", "version": "0.9.0", "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": "1.11.5", "status": "unaffected"}, {"at": "1.10.11", "status": "unaffected"}], "lessThan": "2.0.1", "status": "affected", "version": "0.9.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "value": "This issue was identified by Alex Manson (Aiven / NeuroWinter)."}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11.</p><br/>"}], "value": "HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11."}], "impacts": [{"capecId": "CAPEC-132", "descriptions": [{"lang": "en", "value": "CAPEC-132: Symlink Attack"}]}], "metrics": [{"cvssV3_1": {"baseScore": 6, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-59", "description": "CWE-59: Improper Link Resolution Before File Access (Link Following)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "67fedba0-ff2e-4543-ba5b-aa93e87718cc", "shortName": "HashiCorp", "dateUpdated": "2026-05-12T18:59:09.029Z"}, "references": [{"url": "https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416"}], "source": {"advisory": "HCSEC-2026-14", "discovery": "EXTERNAL"}, "title": "Nomad vulnerable to arbitrary file read/write on client host through symlink attack"}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-12T20:14:14.584948Z", "id": "CVE-2026-6959", "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": "2026-05-12T20:16:15.200Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "HashiCorp Nomad and Nomad Enterprise prior to 2.0.1 are vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-6959) is fixed in Nomad 2.0.1, 1.11.5 and 1.10.11."}], "id": "CVE-2026-6959", "lastModified": "2026-05-12T20:16:46.267", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 6.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.5, "impactScore": 4.0, "source": "security@hashicorp.com", "type": "Secondary"}]}, "published": "2026-05-12T20:16:46.267", "references": [{"source": "security@hashicorp.com", "url": "https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416"}], "sourceIdentifier": "security@hashicorp.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-59"}], "source": "security@hashicorp.com", "type": "Secondary"}]}

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