{"id":"CVE-2023-6337","aliases":["BIT-vault-2023-6337","GHSA-6p62-6cg9-f5f5","GO-2023-2399"],"url":"https://o3.security/vulnerability/CVE-2023-6337","summary":"Vault May be Vulnerable to a Denial of Service Through Memory Exhaustion When Handling Large HTTP Requests","details":"HashiCorp Vault and Vault Enterprise 1.12.0 and newer are vulnerable to a denial of service through memory exhaustion of the host when handling large unauthenticated and authenticated HTTP requests from a client. Vault will attempt to map the request to memory, resulting in the exhaustion of available memory on the host, which may cause Vault to crash.\n\nFixed in Vault 1.15.4, 1.14.8, 1.13.12.","published":"2023-12-08T21:12:31.712Z","modified":"2026-08-12T03:51:22.656801370Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00798,"percentile":0.53382,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/hashicorp/vault","fixedVersion":"1.15.4"},{"ecosystem":"Go","name":"github.com/hashicorp/vault","fixedVersion":"1.14.8"},{"ecosystem":"Go","name":"github.com/hashicorp/vault","fixedVersion":"1.13.12"}],"fix":{"url":"https://github.com/hashicorp/vault/pull/24354","label":"hashicorp/vault#24354"},"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2023-34-vault-vulnerable-to-denial-of-service-through-memory-exhaustion-when-handling-large-http-requests/60741"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/6xxx/CVE-2023-6337.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-6337"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240112-0006/"},{"type":"PACKAGE","url":"https://github.com/hashicorp/vault"},{"type":"WEB","url":"https://github.com/hashicorp/vault/pull/24354"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20240112-0006"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:22.656801370Z"}}