CVE-2026-29185

{"id": "CVE-2026-29185", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 2.7, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 1.2}]}, "published": "2026-03-07T15:15:55.240", "references": [{"url": "https://github.com/backstage/backstage/security/advisories/GHSA-95v5-prp4-5gv5", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "Backstage is an open framework for building developer portals. Prior to version 1.20.1, a vulnerability in the SCM URL parsing used by Backstage integrations allowed path traversal sequences in encoded form to be included in file paths. When these URLs were processed by integration functions that construct API URLs, the traversal segments could redirect requests to unintended SCM provider API endpoints using the configured server-side integration credentials. This issue has been patched in version 1.20.1."}, {"lang": "es", "value": "Backstage es un framework abierto para construir portales de desarrolladores. Antes de la versi\u00f3n 1.20.1, una vulnerabilidad en el an\u00e1lisis de URL de SCM utilizado por las integraciones de Backstage permit\u00eda que secuencias de salto de ruta en formato codificado se incluyeran en las rutas de archivo. Cuando estas URL eran procesadas por funciones de integraci\u00f3n que construyen URL de API, los segmentos de salto de ruta pod\u00edan redirigir solicitudes a puntos finales de API de proveedores de SCM no deseados utilizando las credenciales de integraci\u00f3n del lado del servidor configuradas. Este problema ha sido parcheado en la versi\u00f3n 1.20.1."}], "lastModified": "2026-04-25T18:01:51.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:backstage\\/integration:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "D0BBFB24-4280-4D8A-B628-57BFACED3454", "versionEndExcluding": "1.20.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}