CVE-2026-29186

linuxfoundation backstage plugin-techdocs-node

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2026-29186

Katalog CVE

CVSS 9.8 · Critical EPSS 0,95%

Kerentanan Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') pada linuxfoundation backstage plugin-techdocs-node. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Backstage is an open framework for building developer portals. Prior to version 1.14.3, this is a configuration bypass vulnerability that enables arbitrary code execution. The @backstage/plugin-techdocs-node package uses an allowlist to filter dangerous MkDocs configuration keys during the documentation build process. A gap in this allowlist allows attackers to craft an mkdocs.yml that causes arbitrary Python code execution, completely bypassing TechDocs' security controls. This issue has been patched in version 1.14.3.

Rincian

Terbit di NVD
7 Maret 2026
Terakhir diubah
15 Juli 2026
Status NVD
Modified
CVSS 3.1
9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-434: Unrestricted Upload of File with Dangerous Type
CWE-791: Incomplete Filtering of Special Elements
EPSS (30 hari)
0,95% peluang dieksploitasi; lebih tinggi dari 60,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
linuxfoundation backstage plugin-techdocs-node Semua versi sebelum 1.14.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.