GHSA-MWGR-84FV-3JH9

Vulnerability from github – Published: 2025-08-01 18:31 – Updated: 2025-08-01 21:08
VLAI?
Summary
Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users
Details

A timing side channel in Vault and Vault Enterprise’s (“Vault”) userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.

Severity ?
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/hashicorp/vault"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.20.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-6011"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-203"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-01T21:08:42Z",
    "nvd_published_at": "2025-08-01T18:15:56Z",
    "severity": "LOW"
  },
  "details": "A timing side channel in Vault and Vault Enterprise\u2019s (\u201cVault\u201d) userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault\u2019s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.",
  "id": "GHSA-mwgr-84fv-3jh9",
  "modified": "2025-08-01T21:08:42Z",
  "published": "2025-08-01T18:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6011"
    },
    {
      "type": "WEB",
      "url": "https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/hashicorp/vault"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Hashicorp Vault has an Observable Discrepancy on Existing and Non-Existing Users"
}


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