{"api_version":"1","generated_at":"2026-07-09T07:16:16+00:00","cve":"CVE-2026-14891","urls":{"html":"https://cve.report/CVE-2026-14891","api":"https://cve.report/api/cve/CVE-2026-14891.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-14891","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-14891"},"summary":{"title":"Nomad vulnerable to sandbox escape in Docker task driver","description":"HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver that may allow a job submitter to bind-mount a host path into a container even when volume bind mounts are disabled, potentially leading to reading and writing files on the host. This vulnerability, CVE-2026-14891, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.","state":"PUBLISHED","assigner":"HashiCorp","published_at":"2026-07-08 20:16:48","updated_at":"2026-07-09 04:17:24"},"problem_types":["CWE-59","CWE-59 CWE-59: Improper Link Resolution Before File Access (Link Following)"],"metrics":[{"version":"3.1","source":"security@hashicorp.com","type":"Secondary","score":"8.7","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.7","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","data":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","version":"3.1"}}],"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-21-nomad-vulnerable-to-sandbox-escape-in-docker-task-driver/77561","name":"https://discuss.hashicorp.com/t/hcsec-2026-21-nomad-vulnerable-to-sandbox-escape-in-docker-task-driver/77561","refsource":"security@hashicorp.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-14891","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14891","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"HashiCorp","product":"Nomad","version":"affected 0.4.1 2.0.4 semver","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"]},{"source":"CNA","vendor":"HashiCorp","product":"Nomad Enterprise","version":"affected 0.4.1 2.0.4 semver","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"This issue was reported to HashiCorp by Volkan Kutal, GitHub handle @KutalVolkan.","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-14891","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-07-08T00:00:00+00:00","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-09T03:55:54.984Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"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":"2.0.4","status":"affected","version":"0.4.1","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":"1.11.8","status":"unaffected"},{"at":"1.10.14","status":"unaffected"}],"lessThan":"2.0.4","status":"affected","version":"0.4.1","versionType":"semver"}]}],"credits":[{"lang":"en","value":"This issue was reported to HashiCorp by Volkan Kutal, GitHub handle @KutalVolkan."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver that may allow a job submitter to bind-mount a host path into a container even when volume bind mounts are disabled, potentially leading to reading and writing files on the host. This vulnerability, CVE-2026-14891, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.</p><br/>"}],"value":"HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver that may allow a job submitter to bind-mount a host path into a container even when volume bind mounts are disabled, potentially leading to reading and writing files on the host. This vulnerability, CVE-2026-14891, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14."}],"impacts":[{"capecId":"CAPEC-132","descriptions":[{"lang":"en","value":"CAPEC-132: Symlink Attack"}]}],"metrics":[{"cvssV3_1":{"baseScore":8.7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/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":{"dateUpdated":"2026-07-08T20:09:05.752Z","orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","shortName":"HashiCorp"},"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-21-nomad-vulnerable-to-sandbox-escape-in-docker-task-driver/77561"}],"source":{"advisory":"HCSEC-2026-21","discovery":"EXTERNAL"},"title":"Nomad vulnerable to sandbox escape in Docker task driver"}},"cveMetadata":{"assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","assignerShortName":"HashiCorp","cveId":"CVE-2026-14891","datePublished":"2026-07-08T20:09:05.752Z","dateReserved":"2026-07-06T18:05:48.932Z","dateUpdated":"2026-07-09T03:55:54.984Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-08 20:16:48","lastModifiedDate":"2026-07-09 04:17:24","problem_types":["CWE-59","CWE-59 CWE-59: Improper Link Resolution Before File Access (Link Following)"],"metrics":{"cvssMetricV31":[{"source":"security@hashicorp.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":5.8}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-08T00:00:00+00:00","id":"CVE-2026-14891","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"14891","Ordinal":"1","Title":"Nomad vulnerable to sandbox escape in Docker task driver","CVE":"CVE-2026-14891","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"14891","Ordinal":"1","NoteData":"HashiCorp Nomad and Nomad Enterprise are vulnerable to a sandbox escape in the Docker task driver that may allow a job submitter to bind-mount a host path into a container even when volume bind mounts are disabled, potentially leading to reading and writing files on the host. This vulnerability, CVE-2026-14891, is fixed in Nomad Community Edition 2.0.4 and Nomad Enterprise 2.0.4, 1.11.8, and 1.10.14.","Type":"Description","Title":"Nomad vulnerable to sandbox escape in Docker task driver"}]}}}