CVE-2026-34198 (GCVE-0-2026-34198)

Vulnerability from cvelistv5 – Published: 2026-07-07 03:01 – Updated: 2026-07-07 03:01
VLAI
Title
Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing
Summary
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 ($proxies = '*'), accepting X-Forwarded-Host from any source. The TrustHosts middleware, intended to prevent host header attacks, has a circular caching dependency that prevents it from ever validating hosts. When a password reset is requested, the ResetPassword notification generates the reset URL using url(route(..., false)), which derives the host from the (spoofable) request. An unauthenticated attacker can trigger a password reset email containing a link pointing to an attacker-controlled domain, enabling token theft and account takeover. This issue is fixed in version 4.0.0-beta.471.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
CWE
  • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
  • CWE-346 - Origin Validation Error
Assigner
References
Impacted products
Vendor Product Version
coollabsio coolify Affected: < 4.0.0-beta.471
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "coolify",
          "vendor": "coollabsio",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4.0.0-beta.471"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the TrustProxies middleware trusts all proxies ($proxies = \u0027*\u0027), 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-640",
              "description": "CWE-640: Weak Password Recovery Mechanism for Forgotten Password",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346: Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-07T03:01:19.285Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv"
        },
        {
          "name": "https://github.com/coollabsio/coolify/pull/9193",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/coollabsio/coolify/pull/9193"
        },
        {
          "name": "https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd"
        },
        {
          "name": "https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471"
        }
      ],
      "source": {
        "advisory": "GHSA-cgj8-7m5q-x5gv",
        "discovery": "UNKNOWN"
      },
      "title": "Coolify: Password reset link poisoning via X-Forwarded-Host header spoofing"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-34198",
    "datePublished": "2026-07-07T03:01:19.285Z",
    "dateReserved": "2026-03-26T15:57:52.323Z",
    "dateUpdated": "2026-07-07T03:01:19.285Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-34198\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-07T04:17:50.847\",\"lastModified\":\"2026-07-07T04:17:50.847\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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 = \u0027*\u0027), 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.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"coollabsio\",\"product\":\"coolify\",\"versions\":[{\"version\":\"\u003c 4.0.0-beta.471\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.6,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-346\"},{\"lang\":\"en\",\"value\":\"CWE-640\"}]}],\"references\":[{\"url\":\"https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/coollabsio/coolify/pull/9193\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.