CVE-2026-106457

Katalog CVE

CVSS 6.8 · Medium EPSS 0,28%

Kerentanan Improper Authentication. Skor CVSS 3.1 6.8 (Medium) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

6 Oktober 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Undergoing Analysis

CVSS 3.1

6.8 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-287: Improper Authentication

EPSS (30 hari)

0,28% peluang dieksploitasi; lebih tinggi dari 18,7% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/backstage/backstage/commit/ed9034cacd9def3b3674f0a764fe992f751e204d
• https://github.com/backstage/backstage/releases/tag/v1.55.0
• https://github.com/backstage/backstage/security/advisories/GHSA-q333-f498-w2x7