{"id":"CVE-2026-8052","state":"PUBLISHED","title":"Nomad's exec2 task driver vulnerable to arbitrary file read/write on client host through symlink attack","description":"HashiCorp Nomad’s exec2 task driver prior to 0.1.2 is vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-8052) is fixed in version 0.1.2 of the exec2 task driver.","publishedAt":"2026-05-12T19:09:15.248Z","updatedAt":"2026-05-12T20:22:44.939Z","severity":{"score":6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N","source":"HashiCorp"},"assigner":"HashiCorp","products":["HashiCorp Shared library"],"affected":[{"vendor":"HashiCorp","product":"Shared library","defaultStatus":"unaffected","versions":[{"version":"0.1.0","status":"affected","lessThan":"0.1.2","versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/nomad-driver-exec2"}],"references":["https://discuss.hashicorp.com/t/hcsec-2026-13-nomads-exec2-task-driver-vulnerable-to-arbitrary-file-read-write-on-client-host-through-symlink-attack/77415"],"weaknesses":["CWE-59"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8052.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8052","state":"PUBLISHED","datePublished":"2026-05-12T19:09:15.248Z","dateUpdated":"2026-05-12T20:22:44.939Z","assignerShortName":"HashiCorp","assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","dateReserved":"2026-05-06T18:39:30.181Z"},"containers":{"cna":{"title":"Nomad's exec2 task driver vulnerable to arbitrary file read/write on client host through symlink attack","descriptions":[{"lang":"en","value":"HashiCorp Nomad’s exec2 task driver prior to 0.1.2 is vulnerable to arbitrary file read and write on the client host as the Nomad process user through a symlink attack. This vulnerability (CVE-2026-8052) is fixed in version 0.1.2 of the exec2 task driver."}],"affected":[{"vendor":"HashiCorp","product":"Shared library","defaultStatus":"unaffected","versions":[{"version":"0.1.0","status":"affected","lessThan":"0.1.2","versionType":"semver"}],"platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"repo":"https://github.com/hashicorp/nomad-driver-exec2"}],"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-13-nomads-exec2-task-driver-vulnerable-to-arbitrary-file-read-write-on-client-host-through-symlink-attack/77415"}],"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":{"shortName":"HashiCorp","orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","dateUpdated":"2026-05-12T19:09:15.248Z"},"credits":[{"lang":"en","value":"This issue was identified by the Nomad engineering team in conjunction with Alex Manson (Aiven / NeuroWinter)."}],"impacts":[{"capecId":"CAPEC-132","descriptions":[{"lang":"en","value":"CAPEC-132: Symlink Attack"}]}],"source":{"advisory":"HCSEC-2026-13","discovery":"EXTERNAL"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T20:22:26.659986Z","id":"CVE-2026-8052","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-12T20:22:44.939Z"}}]}}}