CVE-2026-54885 (GCVE-0-2026-54885)

Vulnerability from cvelistv5 – Published: 2026-07-30 14:16 – Updated: 2026-07-31 04:20
VLAI
Title
Server-side request forgery in Boruta OAuth request_uri and OpenID jwks_uri fetching
Summary
Server-Side Request Forgery vulnerability in malach-it Boruta allows an unauthenticated remote attacker to cause the OAuth/OpenID authorization server to issue outbound HTTP requests to attacker-chosen URIs, including internal services and cloud metadata endpoints. Three code paths fetch remote URIs supplied by the requester without sufficient validation of the target. Boruta.Oauth.Request.Base.fetch_unsigned_request/1 in lib/boruta/oauth/request/base.ex dereferences the OAuth request_uri parameter from the authorization request via Finch.build(:get, request_uri) |> Finch.request(OpenIDHttpClient). Boruta.Openid.parse_registration_params/2 in lib/boruta/openid.ex dereferences the jwks_uri supplied in an OpenID Connect dynamic client registration request. Boruta.Ecto.Clients.refresh_jwk_from_jwks_uri/1 in lib/boruta/adapters/ecto/clients.ex later refreshes the stored jwks_uri for an existing client. In all three paths the only validation is that the URI parses with a scheme (and one of the two request_uri clauses does not even restrict the scheme to http or https). The implementations do not require HTTPS, do not enforce a host or IP allowlist, do not reject loopback, private, link-local, or other non-public ranges after DNS resolution, do not cap response size, and do not constrain redirects. An attacker can therefore steer the server's HTTP client at arbitrary network targets reachable from the Boruta host. This issue affects boruta: from 2.3.2 before 2.3.7.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 16:14 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
EEF CNA under the mitre root
CNA scorecard A 97/100 over 353 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
malach-it boruta Affected: 2.3.2 , < 2.3.7 (semver)
    cpe:2.3:a:malach-it:boruta_auth:*:*:*:*:*:*:*:*
Create a notification for this product.
malach-it boruta Affected: 15455b86206e0370eabd64c1856a5c996b436455 , < * (git)
    cpe:2.3:a:malach-it:boruta_auth:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Pascal Knoth Pascal Knoth Jonatan Männchen / EEF
Show details on NVD website
To clipboard 

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          },
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            "lang": "es",
            "value": "Una vulnerabilidad de falsificaci\u00f3n de petici\u00f3n del lado del servidor en malach-it Boruta permite a un atacante remoto no autenticado causar que el servidor de autorizaci\u00f3n OAuth/OpenID emita peticiones HTTP salientes a URIs elegidas por el atacante, incluyendo servicios internos y puntos finales de metadatos en la nube.\n\nTres rutas de c\u00f3digo obtienen URIs remotas suministradas por el solicitante sin validaci\u00f3n suficiente del objetivo. Boruta.Oauth.Request.Base.fetch_unsigned_request/1 en lib/boruta/oauth/request/base.ex desreferencia el par\u00e1metro request_uri de OAuth de la petici\u00f3n de autorizaci\u00f3n a trav\u00e9s de Finch.build(:get, request_uri) |\u003e Finch.request(OpenIDHttpClient). Boruta.Openid.parse_registration_params/2 en lib/boruta/openid.ex desreferencia la jwks_uri suministrada en una petici\u00f3n de registro de cliente din\u00e1mico de OpenID Connect. Boruta.Ecto.Clients.refresh_jwk_from_jwks_uri/1 en lib/boruta/adapters/ecto/clients.ex posteriormente actualiza la jwks_uri almacenada para un cliente existente. En las tres rutas, la \u00fanica validaci\u00f3n es que la URI se analiza con un esquema (y una de las dos cl\u00e1usulas de request_uri ni siquiera restringe el esquema a http o https). Las implementaciones no requieren HTTPS, no aplican una lista de permitidos de host o IP, no rechazan rangos de loopback, privados, link-local u otros rangos no p\u00fablicos despu\u00e9s de la resoluci\u00f3n DNS, no limitan el tama\u00f1o de la respuesta y no restringen las redirecciones. Un atacante puede, por lo tanto, dirigir el cliente HTTP del servidor a objetivos de red arbitrarios alcanzables desde el host de Boruta.\n\nEste problema afecta a boruta: desde 2.3.2 antes de 2.3.7."
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        "id": "CVE-2026-54885",
        "lastModified": "2026-10-23T22:10:00.160",
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                "subIntegrityImpact": "LOW",
                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
                "vulnAvailabilityImpact": "NONE",
                "vulnConfidentialityImpact": "NONE",
                "vulnIntegrityImpact": "NONE",
                "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
              "type": "Secondary"
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          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
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                "timestamp": "2026-07-30T16:14:18.216537Z",
                "version": "2.0.3"
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        "published": "2026-07-30T15:16:34.050",
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            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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            "url": "https://github.com/malach-it/boruta_auth/commit/001e3dc5c259e67c6f907e98867eda4141c96d0d"
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            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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          },
          {
            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "url": "https://osv.dev/vulnerability/EEF-CVE-2026-54885"
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          {
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "url": "https://github.com/malach-it/boruta_auth/security/advisories/GHSA-5q9h-vf5j-fr2g"
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        "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "vulnStatus": "Deferred",
        "weaknesses": [
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                "value": "CWE-918"
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            "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
            "type": "Secondary"
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      }
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    "vulnrichment": {
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        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-54885",
                    "options": [
                      {
                        "Exploitation": "poc"
                      },
                      {
                        "Automatable": "no"
                      },
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                    "timestamp": "2026-07-30T16:14:18.216537Z",
                    "version": "2.0.3"
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            "providerMetadata": {
              "dateUpdated": "2026-07-30T16:14:29.534Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
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            "references": [
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                "tags": [
                  "exploit"
                ],
                "url": "https://github.com/malach-it/boruta_auth/security/advisories/GHSA-5q9h-vf5j-fr2g"
              }
            ],
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "collectionURL": "https://repo.hex.pm",
              "cpes": [
                "cpe:2.3:a:malach-it:boruta_auth:*:*:*:*:*:*:*:*"
              ],
              "defaultStatus": "unaffected",
              "modules": [
                "\u0027Elixir.Boruta.Oauth.Request.Base\u0027",
                "\u0027Elixir.Boruta.Openid\u0027",
                "\u0027Elixir.Boruta.Ecto.Clients\u0027"
              ],
              "packageName": "boruta",
              "packageURL": "pkg:hex/boruta",
              "product": "boruta",
              "programFiles": [
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              "programRoutines": [
                {
                  "name": "\u0027Elixir.Boruta.Oauth.Request.Base\u0027:fetch_unsigned_request/1"
                },
                {
                  "name": "\u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2"
                },
                {
                  "name": "\u0027Elixir.Boruta.Ecto.Clients\u0027:refresh_jwk_from_jwks_uri/1"
                }
              ],
              "repo": "https://github.com/malach-it/boruta_auth",
              "vendor": "malach-it",
              "versions": [
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                  "status": "affected",
                  "version": "2.3.2",
                  "versionType": "semver"
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            },
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              "cpes": [
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              "defaultStatus": "unaffected",
              "modules": [
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              ],
              "packageName": "malach-it/boruta_auth",
              "packageURL": "pkg:github/malach-it/boruta_auth",
              "product": "boruta",
              "programFiles": [
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              ],
              "programRoutines": [
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                  "name": "\u0027Elixir.Boruta.Oauth.Request.Base\u0027:fetch_unsigned_request/1"
                },
                {
                  "name": "\u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2"
                },
                {
                  "name": "\u0027Elixir.Boruta.Ecto.Clients\u0027:refresh_jwk_from_jwks_uri/1"
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              ],
              "repo": "https://github.com/malach-it/boruta_auth",
              "vendor": "malach-it",
              "versions": [
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                  "changes": [
                    {
                      "at": "001e3dc5c259e67c6f907e98867eda4141c96d0d",
                      "status": "unaffected"
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                      "status": "unaffected"
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                  ],
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                  "status": "affected",
                  "version": "15455b86206e0370eabd64c1856a5c996b436455",
                  "versionType": "git"
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          ],
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                    {
                      "criteria": "cpe:2.3:a:malach-it:boruta_auth:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "2.3.7",
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              ],
              "operator": "AND"
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          "credits": [
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              "lang": "en",
              "type": "finder",
              "value": "Pascal Knoth"
            },
            {
              "lang": "en",
              "type": "remediation developer",
              "value": "Pascal Knoth"
            },
            {
              "lang": "en",
              "type": "analyst",
              "value": "Jonatan M\u00e4nnchen / EEF"
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                  "value": "\u003cp\u003eServer-Side Request Forgery vulnerability in malach-it Boruta allows an unauthenticated remote attacker to cause the OAuth/OpenID authorization server to issue outbound HTTP requests to attacker-chosen URIs, including internal services and cloud metadata endpoints.\u003c/p\u003e\u003cp\u003eThree code paths fetch remote URIs supplied by the requester without sufficient validation of the target. \u003ctt\u003e\u0027Elixir.Boruta.Oauth.Request.Base\u0027:fetch_unsigned_request/1\u003c/tt\u003e in \u003ctt\u003elib/boruta/oauth/request/base.ex\u003c/tt\u003e dereferences the OAuth \u003ctt\u003erequest_uri\u003c/tt\u003e parameter from the authorization request via \u003ctt\u003eFinch.build(:get, request_uri) |\u0026gt; Finch.request(OpenIDHttpClient)\u003c/tt\u003e. \u003ctt\u003e\u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2\u003c/tt\u003e in \u003ctt\u003elib/boruta/openid.ex\u003c/tt\u003e dereferences the \u003ctt\u003ejwks_uri\u003c/tt\u003e supplied in an OpenID Connect dynamic client registration request. \u003ctt\u003e\u0027Elixir.Boruta.Ecto.Clients\u0027:refresh_jwk_from_jwks_uri/1\u003c/tt\u003e in \u003ctt\u003elib/boruta/adapters/ecto/clients.ex\u003c/tt\u003e later refreshes the stored \u003ctt\u003ejwks_uri\u003c/tt\u003e for an existing client. In all three paths the only validation is that the URI parses with a scheme (and one of the two \u003ctt\u003erequest_uri\u003c/tt\u003e clauses does not even restrict the scheme to \u003ctt\u003ehttp\u003c/tt\u003e or \u003ctt\u003ehttps\u003c/tt\u003e). The implementations do not require HTTPS, do not enforce a host or IP allowlist, do not reject loopback, private, link-local, or other non-public ranges after DNS resolution, do not cap response size, and do not constrain redirects. An attacker can therefore steer the server\u0027s HTTP client at arbitrary network targets reachable from the Boruta host.\u003c/p\u003e\u003cp\u003eThis issue affects boruta: from 2.3.2 before 2.3.7.\u003c/p\u003e"
                }
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          "source": {
            "discovery": "INTERNAL"
          },
          "title": "Server-side request forgery in Boruta OAuth request_uri and OpenID jwks_uri fetching",
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        "cveId": "CVE-2026-54885",
        "datePublished": "2026-07-30T14:16:43.631Z",
        "dateReserved": "2026-06-16T10:47:13.914Z",
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  }
}



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