{"id":"CVE-2023-0821","aliases":["GHSA-w479-w22g-cffh","GO-2023-1581"],"url":"https://o3.security/vulnerability/CVE-2023-0821","summary":"Nomad Client Vulnerable to Decompression Bombs in Artifact Block","details":"HashiCorp Nomad and Nomad Enterprise 1.2.15 up to 1.3.8, and 1.4.3 jobs using a maliciously compressed artifact stanza source can cause excessive disk usage. Fixed in 1.2.16, 1.3.9, and 1.4.4.","published":"2023-02-16T21:23:24.500Z","modified":"2026-07-15T01:49:10.737475653Z","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/hashicorp/nomad","fixedVersion":"1.2.16"},{"ecosystem":"Go","name":"github.com/hashicorp/nomad","fixedVersion":"1.3.9"},{"ecosystem":"Go","name":"github.com/hashicorp/nomad","fixedVersion":"1.4.4"}],"fix":null,"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2023-05-nomad-client-vulnerable-to-decompression-bombs-in-artifact-block/50292"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0821.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0821"},{"type":"PACKAGE","url":"https://github.com/hashicorp/nomad"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:10.737475653Z"}}