{"id":"UBUNTU-CVE-2026-6959","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.","modified":"2026-05-20T22:03:09.639452941Z","published":"2026-05-12T20:16:00Z","upstream":["CVE-2026-6959"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-6959"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-6959"},{"type":"REPORT","url":"https://discuss.hashicorp.com/t/hcsec-2026-14-nomad-arbitrary-file-read-write-on-client-host-through-symlink-attack/77416"}],"affected":[{"package":{"name":"nomad","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nomad?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4.0+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.4.0+dfsg-1","binary_name":"nomad"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6959.json"}},{"package":{"name":"nomad","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nomad?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.7+dfsg1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.8.7+dfsg1-1ubuntu1","binary_name":"nomad"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6959.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}