CWE-202

Exposure of Sensitive Information Through Data Queries

When trying to keep information confidential, an attacker can often infer some of the information by using statistics.

CVE-2026-42797 (GCVE-0-2026-42797)

Vulnerability from cvelistv5 – Published: 2026-05-25 15:00 – Updated: 2026-05-25 20:30
VLAI
Title
Apache Syncope: JexlContextBuilder Information Disclosure
Summary
Exposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope. An administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access User-related security-sensitive information. This issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0. Users are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition.
Severity
No CVSS data available.
CWE
  • CWE-202 - Exposure of Sensitive Information Through Data Queries
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Syncope Affected: 3.0 , ≤ 3.0.16 (semver)
Affected: 4.0 , ≤ 4.0.5 (semver)
Affected: 4.1 , ≤ 4.1.0 (semver)
Create a notification for this product.
Credits
elin kai
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-05-25T20:30:25.603Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/05/25/5"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected",
          "packageName": "org.apache.syncope.core:syncope-core-provisioning-api",
          "product": "Apache Syncope",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.0.16",
              "status": "affected",
              "version": "3.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.0.5",
              "status": "affected",
              "version": "4.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.1.0",
              "status": "affected",
              "version": "4.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "elin kai"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eExposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope.\u003c/p\u003e\u003cp\u003eAn administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access User-related security-sensitive information.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition.\u003c/p\u003e"
            }
          ],
          "value": "Exposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope.\n\nAn administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access User-related security-sensitive information.\n\nThis issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0.\n\nUsers are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-202",
              "description": "CWE-202 Exposure of Sensitive Information Through Data Queries",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-25T15:00:55.670Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.apache.org/thread/5y7d277sntyytrmxnx2tfjr9ftcpq1s6"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Apache Syncope: JexlContextBuilder Information Disclosure",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2026-42797",
    "datePublished": "2026-05-25T15:00:55.670Z",
    "dateReserved": "2026-04-30T06:10:34.810Z",
    "dateUpdated": "2026-05-25T20:30:25.603Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}










Mitigation

Phase: Architecture and Design

Description:

  • This is a complex topic. See the [REF-1492] for a good discussion of best practices.

No CAPEC attack patterns related to this CWE.

Back to CWE stats page