CVE-2026-106456

Katalog CVE

CVSS 4.8 · Medium EPSS 0,24%

Kerentanan Incorrect Authorization. Skor CVSS 3.1 4.8 (Medium) menurut github.com.

Deskripsi (NVD)

Backstage is an open framework for building developer portals. From 0.5.0 until 0.6.18, the @backstage/plugin-proxy-backend package is affected by inconsistent credential enforcement for overlapping proxy routes. An operator can configure overlapping proxy paths with different credential requirements. When a parent path permits unauthenticated access and a nested path requires credentials, the parent exemption can also cover requests handled by the nested proxy. An unauthenticated caller may therefore reach the nested upstream through Backstage, including with static upstream credentials configured for that proxy. This issue is fixed in version 0.6.18.

Rincian

Terbit di NVD

6 Oktober 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Undergoing Analysis

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-863: Incorrect Authorization

EPSS (30 hari)

0,24% peluang dieksploitasi; lebih tinggi dari 13,4% 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/9df92923ac32558bb80edeceafd8de780c44e218
• https://github.com/backstage/backstage/releases/tag/v1.55.0
• https://github.com/backstage/backstage/security/advisories/GHSA-472h-9c5j-prrr