FKIE_CVE-2026-65635

Vulnerability from fkie_nvd - Published: 2026-07-30 15:16 - Updated: 2026-07-30 17:16
Severity
8.3 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:L/SI:L/SA:N
Summary
Improper Isolation or Compartmentalization vulnerability in malach-it boruta (Elixir.Boruta.Openid module) allows attackers to register OpenID Connect clients with administrative privileges through the dynamic client registration entry point. Boruta.Openid.register_client/3 forwards caller-supplied registration parameters to the administrative client creation path without a public/admin field-level allowlist, so an unauthenticated registrant can set security-sensitive attributes including supported grant types, authorized scopes, PKCE enforcement, public refresh and revocation behavior, token lifetimes, and signing settings. The library does not distinguish between metadata a public registrant is allowed to set and administrative controls that should require operator approval. This vulnerability is associated with program files lib/boruta/openid.ex and program routines 'Elixir.Boruta.Openid':register_client/3, 'Elixir.Boruta.Openid':parse_registration_params/2. This issue affects boruta from 2.3.0 before 2.3.7.
References
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://cna.erlef.org/cves/CVE-2026-65635.html
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/malach-it/boruta_auth/commit/82584c854a332482232fd25301ab12a835f9f643
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/malach-it/boruta_auth/commit/95619a1beaff68fa766cca9b388e7c780d182525
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp
6b3ad84c-e1a6-4bf7-a703-f496b71e49dbhttps://osv.dev/vulnerability/EEF-CVE-2026-65635
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://repo.hex.pm",
          "cpes": [
            "cpe:2.3:a:malach-it:boruta:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "Elixir.Boruta.Openid"
          ],
          "packageName": "boruta",
          "packageURL": "pkg:hex/boruta",
          "product": "boruta",
          "programFiles": [
            "lib/boruta/openid.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Boruta.Openid\u0027:register_client/3"
            },
            {
              "name": "\u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2"
            }
          ],
          "repo": "https://github.com/malach-it/boruta_auth",
          "vendor": "malach-it",
          "versions": [
            {
              "lessThan": "2.3.7",
              "status": "affected",
              "version": "2.3.0",
              "versionType": "semver"
            }
          ]
        },
        {
          "collectionURL": "https://github.com",
          "cpes": [
            "cpe:2.3:a:malach-it:boruta:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "modules": [
            "Elixir.Boruta.Openid"
          ],
          "packageName": "malach-it/boruta_auth",
          "packageURL": "pkg:github/malach-it/boruta_auth",
          "product": "boruta",
          "programFiles": [
            "lib/boruta/openid.ex"
          ],
          "programRoutines": [
            {
              "name": "\u0027Elixir.Boruta.Openid\u0027:register_client/3"
            },
            {
              "name": "\u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2"
            }
          ],
          "repo": "https://github.com/malach-it/boruta_auth",
          "vendor": "malach-it",
          "versions": [
            {
              "changes": [
                {
                  "at": "82584c854a332482232fd25301ab12a835f9f643",
                  "status": "unaffected"
                },
                {
                  "at": "95619a1beaff68fa766cca9b388e7c780d182525",
                  "status": "unaffected"
                }
              ],
              "lessThan": "*",
              "status": "affected",
              "version": "85481b706636fe68a43d0b8d3275e2afc7f7fee1",
              "versionType": "git"
            }
          ]
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Isolation or Compartmentalization vulnerability in malach-it boruta (Elixir.Boruta.Openid module) allows attackers to register OpenID Connect clients with administrative privileges through the dynamic client registration entry point. Boruta.Openid.register_client/3 forwards caller-supplied registration parameters to the administrative client creation path without a public/admin field-level allowlist, so an unauthenticated registrant can set security-sensitive attributes including supported grant types, authorized scopes, PKCE enforcement, public refresh and revocation behavior, token lifetimes, and signing settings. The library does not distinguish between metadata a public registrant is allowed to set and administrative controls that should require operator approval.\n\nThis vulnerability is associated with program files lib/boruta/openid.ex and program routines \u0027Elixir.Boruta.Openid\u0027:register_client/3, \u0027Elixir.Boruta.Openid\u0027:parse_registration_params/2.\n\nThis issue affects boruta from 2.3.0 before 2.3.7."
    }
  ],
  "id": "CVE-2026-65635",
  "lastModified": "2026-07-30T17:16:34.043",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.3,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "LOW",
          "subIntegrityImpact": "LOW",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/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": "LOW",
          "vulnConfidentialityImpact": "LOW",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-65635",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-30T16:13:41.629153Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-30T15:16:35.017",
  "references": [
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://cna.erlef.org/cves/CVE-2026-65635.html"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/malach-it/boruta_auth/commit/82584c854a332482232fd25301ab12a835f9f643"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/malach-it/boruta_auth/commit/95619a1beaff68fa766cca9b388e7c780d182525"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp"
    },
    {
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "url": "https://osv.dev/vulnerability/EEF-CVE-2026-65635"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/malach-it/boruta_auth/security/advisories/GHSA-w869-fcf2-68vp"
    }
  ],
  "sourceIdentifier": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-653"
        }
      ],
      "source": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
      "type": "Secondary"
    }
  ]
}



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