{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "1.0.0-beta.1"
              },
              {
                "fixed": "1.4.3"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "db4d1e973bc2c9ecad045d88353a45722aca621e"
            },
            {
              "fixed": "7d642ca6bd8edc375422b704d3d30163df536ab0"
            }
          ],
          "repo": "https://github.com/getgrav/grav-plugin-login-oauth",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-mj8v-hvf6-73gm"
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-1391"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109321.json"
  },
  "details": "Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic \u003cprovider\u003e.\u003cid\u003e username and an unsalted MD5 hash of the provider identifier as the password, without disabling password login. Unauthenticated remote attackers who learn or guess a provider identifier can reproduce these credentials and log in, gaining administrative control of privileged accounts.",
  "id": "CVE-2026-109321",
  "modified": "2026-10-14T02:30:44.778505784Z",
  "published": "2026-10-12T16:05:13.414Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109321.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/getgrav/grav/security/advisories/GHSA-mj8v-hvf6-73gm"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109321"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/grav-login-oauth-plugin-before-1.4.3-predictable-local-credentials-authentication-bypass"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/getgrav/grav-plugin-login-oauth"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Grav Login OAuth Plugin before 1.4.3 Predictable Local Credentials Authentication Bypass"
}