CVE-2026-106491

Katalog CVE

CVSS 6.4 · Medium EPSS 0,27%

Kerentanan Improper Input Validation. Skor CVSS 3.1 6.4 (Medium) menurut github.com.

Deskripsi (NVD)

Backstage is an open framework for building developer portals. Prior to 0.6.17, the @backstage/plugin-proxy-backend package is affected by improper input validation in proxy-backend. An authenticated Backstage user could craft a request URL that causes the proxy-backend to forward the request to a path outside the configured base path on the target server. This is limited to target servers already configured as proxy endpoints and requires Backstage authentication by default. This issue is fixed in version 0.6.17.

Rincian

Terbit di NVD

6 Oktober 2026

Terakhir diubah

7 Oktober 2026

Status NVD

Undergoing Analysis

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 17,5% 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/233287d0ce3133e41549bf92a7470c940a41753c
• https://github.com/backstage/backstage/releases/tag/v1.54.6
• https://github.com/backstage/backstage/security/advisories/GHSA-9ghw-48h5-v2w5