{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "9.4.0"
              },
              {
                "fixed": "1.1.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8ac33d1eaaf0d2b46cb1dd0a55c7596323edf0ce"
            },
            {
              "fixed": "1feea22d43fef5799ffdb50299d70ebf88b2bfea"
            },
            {
              "fixed": "efe95edd4dedc3379735094936439410a51ce3d9"
            }
          ],
          "repo": "https://github.com/jhipster/generator-jhipster",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-9ffp-22j7-56r2"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107303.json"
  },
  "details": "JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures. Prior to generator-jhipster 9.4.0 and react-jhipster 1.1.0, generated applications can persist attacker-controlled Blob data and companion ContentType values, return them through generated REST endpoints, and pass them to the generated openFile helper in generators/client/generators/common/templates/src/main/webapp/app/shared/jhipster/data-utils.ts.ejs. The helper uses the returned ContentType as the browser Blob MIME type and opens an object URL, so a normal authenticated user with write access to a Blob-bearing entity can store active HTML or SVG content that may execute under the application origin when a privileged user opens it. Exploitability depends on the generated application's content security policy and target-browser Blob behavior. This issue is fixed in generator-jhipster 9.4.0 and react-jhipster 1.1.0.",
  "id": "CVE-2026-107303",
  "modified": "2026-10-11T02:30:42.906440245Z",
  "published": "2026-10-08T17:23:04.706Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jhipster/generator-jhipster/releases/tag/v9.4.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107303.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jhipster/generator-jhipster/security/advisories/GHSA-9ffp-22j7-56r2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-107303"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jhipster/generator-jhipster/commit/efe95edd4dedc3379735094936439410a51ce3d9"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jhipster/generator-jhipster/pull/34807"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "JHipster: Generated Applications Allow Stored XSS via Unrestricted Blob ContentType Opened as Same-Origin Blob"
}