CVE-2026-106457: fallo de gravedad media en backstage
Backstage: Insufficient audience validation in the Cloudflare Access auth provider
Publicada el · Actualizada el
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6.8epss 0.3%
probabilidad de explotación
0.3%top 82% de las CVE
explotación observada
noninguna fuente lo reporta
Backstage is an open framework for building developer portals. From 0.1.0 until 0.5.0, the @backstage/plugin-auth-backend-module-cloudflare-access-provider package is affected by insufficient audience validation in the cloudflare access auth provider. The Cloudflare Access auth provider verifies a token's signature and team issuer, but affected versions do not verify that the token was issued for the Backstage application. A user holding a valid token for another Access application in the same Cloudflare Zero Trust team may therefore be able to authenticate to Backstage if that token reaches the auth endpoint without the Backstage application's audience already being enforced upstream. Cloudflare Access normally evaluates the protected application before forwarding requests. This issue is fixed in version 0.5.0.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Productos afectados
@backstage · plugin-auth-backend-module-cloudflare-access-providerbackstage · backstageCVEs relacionadas — backstage
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