{"id":"CVE-2026-106489","revision":"c39e5dd90602494482dd7ca2ebfba354","records":[{"revision":"c39e5dd90602494482dd7ca2ebfba354","observedAt":"2026-10-25T04:17:41.466+00:00","statement":{"source":"nvd","id":"CVE-2026-106489","aliases":[],"title":"Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper authorization enforcement for techdocs static content. An authenticated user with access t…","description":"Backstage is an open framework for building developer portals. Prior to 2.2.4, the @backstage/plugin-techdocs-backend package is affected by improper authorization enforcement for techdocs static content. An authenticated user with access to one TechDocs documentation site could craft a URL able to read documentation belonging to a different entity. This only affects deployments using the external TechDocs builder with an external storage provider (S3, GCS, etc.) and the permission framework enabled. Instances that do not use the permission framework are unaffected, since TechDocs content is visible to all authenticated users by design. This issue is fixed in version 2.2.4.","state":0,"publishedAt":"2026-10-06T21:17:17.77+00:00","modifiedAt":"2026-10-22T14:42:34.903+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/backstage/backstage/commit/bf6bbf7326ada7d96d7b2c4ebc4a71546106f311","https://github.com/backstage/backstage/releases/tag/v1.54.6","https://github.com/backstage/backstage/security/advisories/GHSA-rg9r-hr7g-5gc2"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106489","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-22","CWE-862"],"productCriteria":["cpe:2.3:a:linuxfoundation:backstage\\/plugin-techdocs-backend:*:*:*:*:*:node.js:*:*","cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:*"],"sourceDates":{"published":"2026-10-06T21:17:17.770","lastModified":"2026-10-22T14:42:34.903"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-106489","identifiers":["CVE-2026-106489"]},"retained":false,"historicalAffected":[]}],"coverage":[]}