CVE-2026-45795

{
  "id": "CVE-2026-45795",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-16T17:16:56.820",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Janssen Project is an open-source identity and access management (IAM) platform. Prior to 2.0.0, jans-auth-server accepts unsigned JWE request objects because JwtAuthorizationRequest skips inner signature validation when jwe.getSignedJWTPayload() returns null, and AuthzRequestService.processRequestObject() does not reject the unrecognized RSA-OAEP algorithm when forceSignedRequestObject=true. This issue is fixed in version 2.0.0."
    },
    {
      "lang": "es",
      "value": "El Proyecto Janssen es una plataforma de código abierto de gestión de identidades y accesos (IAM). Antes de la versión 2.0.0, jans-auth-servidor acepta objetos de solicitud JWE sin firmar porque JwtAuthorizationRequest omite la validación de la firma interna cuando jwe.getSignedJWTPayload() devuelve nulo, y AuthzRequestService.processRequestObject() no rechaza el algoritmo RSA-OAEP no reconocido cuando forceSignedRequestObject=true. Este problema se corrige en la versión 2.0.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "JanssenProject",
          "product": "jans",
          "versions": [
            {
              "version": "< 2.0.0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-16T18:05:48.605170Z",
          "id": "CVE-2026-45795",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/JanssenProject/jans/commit/0cdd214870ee30eb2186261f21c85b9e9fc63b5c",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/JanssenProject/jans/pull/13438",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/JanssenProject/jans/releases/tag/v2.0.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/JanssenProject/jans/security/advisories/GHSA-r3gj-4pj2-9j3j",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/JanssenProject/jans/security/advisories/GHSA-r3gj-4pj2-9j3j",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}