CVE-2026-106503: fallo de gravedad alta en backstage
Backstage: Scaffolder action input authorization bypass
Publicada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.1epss 0.4%
probabilidad de explotación
0.4%top 73% de las CVE
explotación observada
noninguna fuente lo reporta
Backstage is an open framework for building developer portals. Prior to 3.3.1, 3.4.1, 4.0.3 and 4.1.0, the @backstage/plugin-scaffolder-backend package is affected by scaffolder action input authorization bypass. An authenticated user with access to affected Scaffolder templates could bypass configured action restrictions. Depending on integration credentials, this could grant unauthorized access to repositories and related source-control resources. This issue is fixed in versions 3.3.1, 3.4.1, 4.0.3 and 4.1.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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Referencias
https://github.com/backstage/backstage/commit/11c1384c0649b8ab26391c6a4e4f34b80ab0d188https://github.com/backstage/backstage/commit/a91ed72d540e80b62a73b39bb1563ff5018d52d1https://github.com/backstage/backstage/commit/e307e4f487103d815e484291b3fda778ab9983bfhttps://github.com/backstage/backstage/releases/tag/v1.49.6https://github.com/backstage/backstage/releases/tag/v1.50.5https://github.com/backstage/backstage/releases/tag/v1.54.6https://github.com/backstage/backstage/security/advisories/GHSA-hmp2-4m7g-22cv