FKIE_CVE-2026-44745

Vulnerability from fkie_nvd - Published: 2026-07-14 01:16 - Updated: 2026-09-08 20:20
Severity
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
SAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthenticated remote attacker to craft a malicious link which, when clicked by a victim, could lead to unauthorized access. Successful exploitation results in a high impact to the confidentiality and integrity with no impact on the availability of the application.
References
cna@sap.comhttps://me.sap.com/notes/3741519Permissions Required
cna@sap.comhttps://url.sap/sapsecuritypatchdayVendor Advisory
Impacted products
Vendor Product Version
sap approuter *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "SAP Approuter",
          "vendor": "SAP_SE",
          "versions": [
            {
              "status": "affected",
              "version": "SAP Approuter node.js package \u003c 21.2.0"
            }
          ]
        }
      ],
      "source": "cna@sap.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:sap:approuter:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "B2056FC6-B111-4045-A3A6-05C00672D762",
              "versionEndExcluding": "21.2.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SAP Approuter does not properly validate incoming request headers during the OAuth2 login flow under certain configurations. This allows an unauthenticated remote attacker to craft a malicious link which, when clicked by a victim, could lead to unauthorized access. Successful exploitation results in a high impact to the confidentiality and integrity with no impact on the availability of the application."
    }
  ],
  "id": "CVE-2026-44745",
  "lastModified": "2026-09-08T20:20:34.980",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "cna@sap.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-44745",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-14T12:39:28.750959Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-14T01:16:17.320",
  "references": [
    {
      "source": "cna@sap.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://me.sap.com/notes/3741519"
    },
    {
      "source": "cna@sap.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://url.sap/sapsecuritypatchday"
    }
  ],
  "sourceIdentifier": "cna@sap.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-601"
        }
      ],
      "source": "cna@sap.com",
      "type": "Secondary"
    }
  ]
}



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