{"id":"CVE-2026-6959","aliases":["GHSA-3934-423w-4jq3","GO-2026-5076"],"url":"https://o3.security/vulnerability/CVE-2026-6959","summary":"Nomad vulnerable to arbitrary file read/write on client host through symlink attack","details":"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.","published":"2026-05-12T18:59:09.029Z","modified":"2026-07-31T18:30:27.550435650Z","cvss":{"score":6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N"},"epss":{"score":0.00169,"percentile":0.06487,"asOf":"2026-08-09"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/hashicorp/nomad","fixedVersion":"1.11.0-rc.1.0.20260512123500-2a09fd62c238"}],"fix":null,"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6959.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-6959"},{"type":"PACKAGE","url":"https://github.com/hashicorp/nomad"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:27.550435650Z"}}