{"id":"CVE-2026-107303","title":"JHipster is a development platform to quickly generate, develop, and deploy modern web applications and microservice architectures","summary":"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-c…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","cwe":["CWE-79"],"vendor":"generator-jhipster","product":"generator-jhipster","affected":["generator-jhipster < 9.4.0","react-jhipster <= 1.0.3"],"patched":["generator-jhipster 9.4.0","react-jhipster 1.1.0"],"published":"2026-10-08","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:03:01.043","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107303","references":[{"url":"https://github.com/jhipster/generator-jhipster/commit/efe95edd4dedc3379735094936439410a51ce3d9","label":"security-advisories@github.com"},{"url":"https://github.com/jhipster/generator-jhipster/pull/34807","label":"security-advisories@github.com"},{"url":"https://github.com/jhipster/generator-jhipster/releases/tag/v9.4.0","label":"security-advisories@github.com"},{"url":"https://github.com/jhipster/generator-jhipster/security/advisories/GHSA-9ffp-22j7-56r2","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-9ffp-22j7-56r2"}],"tags":["nvd","ghsa","npm","cve.org"],"aliases":["GHSA-9ffp-22j7-56r2"],"ecosystem":"npm","ingestedAt":"2026-10-08T17:56:11.724Z","slug":"CVE-2026-107303","body":"## Overview\n\nJHipster 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-107303)\n\nAffected packages:\n\n- `generator-jhipster < 9.4.0`\n- `react-jhipster <= 1.0.3`\n\nPatched in:\n\n- `generator-jhipster 9.4.0`\n- `react-jhipster 1.1.0`\n\nSource: https://github.com/advisories/GHSA-9ffp-22j7-56r2","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}