{"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"}}]}}