CVE-2026-106503: falha de alta gravidade em backstage
Backstage: Scaffolder action input authorization bypass
Publicada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.1epss 0.4%
probabilidade de exploração
0.4%top 73% das CVEs
exploração observada
nãonenhuma fonte 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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Referências
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