CVE-2026-44753 (GCVE-0-2026-44753)

Vulnerability from cvelistv5 – Published: 2026-07-14 00:19 – Updated: 2026-07-14 00:19
VLAI
Title
Information Disclosure vulnerability in SAP HANA Extended Application Services classic model (User Self Service)
Summary
SAP HANA Database (user self service tools) allows an unauthenticated user to send specially crafted requests that produce distinguishable responses, enabling enumeration of valid user accounts and email addresses. Successful exploitation could allow the attacker to enumerate valid user accounts, resulting in low impact on confidentiality, with no impact on integrity and availability of the application.
CWE
  • CWE-204 - Observable Response Discrepancy
Assigner
sap
Show details on NVD website

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        {
          "defaultStatus": "unaffected",
          "product": "SAP HANA Extended Application Services classic model (User Self Service)",
          "vendor": "SAP_SE",
          "versions": [
            {
              "status": "affected",
              "version": "HDB 2.00"
            }
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      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
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      "problemTypes": [
        {
          "descriptions": [
            {
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              "description": "CWE-204: Observable Response Discrepancy",
              "lang": "eng",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T00:19:58.321Z",
        "orgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
        "shortName": "sap"
      },
      "references": [
        {
          "url": "https://me.sap.com/notes/3732522"
        },
        {
          "url": "https://url.sap/sapsecuritypatchday"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Information Disclosure vulnerability in SAP HANA Extended Application Services classic model (User Self Service)",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e4686d1a-f260-4930-ac4c-2f5c992778dd",
    "assignerShortName": "sap",
    "cveId": "CVE-2026-44753",
    "datePublished": "2026-07-14T00:19:58.321Z",
    "dateReserved": "2026-05-07T18:31:04.066Z",
    "dateUpdated": "2026-07-14T00:19:58.321Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-44753\",\"sourceIdentifier\":\"cna@sap.com\",\"published\":\"2026-07-14T01:16:17.683\",\"lastModified\":\"2026-07-14T01:16:17.683\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"SAP HANA Database (user self service tools) allows an unauthenticated user to send specially crafted requests that produce distinguishable responses, enabling enumeration of valid user accounts and email addresses. Successful exploitation could allow the attacker to enumerate valid user accounts, resulting in low impact on confidentiality, with no impact on integrity and availability of the application.\"}],\"affected\":[{\"source\":\"cna@sap.com\",\"affectedData\":[{\"vendor\":\"SAP_SE\",\"product\":\"SAP HANA Extended Application Services classic model (User Self Service)\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"HDB 2.00\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cna@sap.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N\",\"baseScore\":3.7,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"cna@sap.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-204\"}]}],\"references\":[{\"url\":\"https://me.sap.com/notes/3732522\",\"source\":\"cna@sap.com\"},{\"url\":\"https://url.sap/sapsecuritypatchday\",\"source\":\"cna@sap.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.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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