CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
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.
Засегнати продукти
- backstage backstage: >= 1.26.0, < 1.55.0
- @backstage plugin-auth-backend-module-cloudflare-access-provider: >= 0.1.0, < 0.5.0
Вид слабост
История
- 6 октомври 2026 Публикувано
Други уязвимости в backstage backstage
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-106457
- https://nvd.nist.gov/vuln/detail/CVE-2026-106457
- https://github.com/backstage/backstage/security/advisories/GHSA-q333-f498-w2x7
- https://github.com/backstage/backstage/commit/ed9034cacd9def3b3674f0a764fe992f751e204d
- https://github.com/backstage/backstage/releases/tag/v1.55.0