{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.0.0-beta.471"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "98569e4edbfc316877c9e0d27ea89fab3c49e3bd"
            },
            {
              "fixed": "914d7e0b50505bc1fd56c34974fca09ad354e92a"
            }
          ],
          "repo": "https://github.com/coollabsio/coolify",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-cgj8-7m5q-x5gv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-346",
      "CWE-640"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34198.json"
  },
  "details": "Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the TrustProxies middleware trusts all proxies ($proxies = '*'), accepting X-Forwarded-Host from any source. The TrustHosts middleware, intended to prevent host header attacks, has a circular caching dependency that prevents it from ever validating hosts. When a password reset is requested, the ResetPassword notification generates the reset URL using url(route(..., false)), which derives the host from the (spoofable) request. An unauthenticated attacker can trigger a password reset email containing a link pointing to an attacker-controlled domain, enabling token theft and account takeover. This issue is fixed in version 4.0.0-beta.471.",
  "id": "CVE-2026-34198",
  "modified": "2026-08-12T03:51:15.585900523Z",
  "published": "2026-07-07T03:01:19.285Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34198.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34198"
    },
    {
      "type": "FIX",
      "url": "https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd"
    },
    {
      "type": "FIX",
      "url": "https://github.com/coollabsio/coolify/pull/9193"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing"
}