{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "26.2.0-beta.1"
              },
              {
                "fixed": "26.2.0-beta.5"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "7fe69b32524018df04d793272f7bcdc0a964913e"
            },
            {
              "fixed": "62efb006f4096055c312d036c62819d697ff5ac4"
            }
          ],
          "repo": "https://github.com/reviactyl/panel",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-8mcf-rp68-xhfg"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-284"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34456.json"
  },
  "details": "Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email addresses. An attacker could create or control a social account (e.g., Google, GitHub, Discord) using a victim’s email address and gain full access to the victim's account without knowing their password. This results in a full account takeover with no prior authentication required. This issue has been patched in version 26.2.0-beta.5.",
  "id": "CVE-2026-34456",
  "modified": "2026-07-08T05:36:14.679340241Z",
  "published": "2026-04-01T20:00:55.743Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/reviactyl/panel/releases/tag/v26.2.0-beta.5"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34456.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/reviactyl/panel/security/advisories/GHSA-8mcf-rp68-xhfg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34456"
    },
    {
      "type": "FIX",
      "url": "https://github.com/reviactyl/panel/commit/fe0c29fc62fefe354c9ab8936dfe30fdb586a896"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Reviactyl: OAuth account takeover via auto-linking"
}