CVE-2026-27203 — Katalog CVE

csirt@kutim:~/threat-intel/cve/CVE-2026-27203

CVSS 8.3 · High EPSS 0,50%

Kerentanan External Control of System or Configuration Setting. Skor CVSS 3.1 8.3 (High) menurut github.com.

Deskripsi (NVD)

eBay API MCP Server is an open source local MCP server providing AI assistants with comprehensive access to eBay's Sell APIs. All versions are vulnerable to Environment Variable Injection through the updateEnvFile function. The ebay_set_user_tokens tool allows updating the .env file with new tokens. The updateEnvFile function in src/auth/oauth.ts blindly appends or replaces values without validating them for newlines or quotes. This allows an attacker to inject arbitrary environment variables into the configuration file. An attacker can inject arbitrary environment variables into the .env file. This could lead to configuration overwrites, Denial of Service, and potential RCE. There was no fix for this issue at the time of publication.

Rincian

Terbit di NVD: 21 Februari 2026
Terakhir diubah: 17 Juni 2026
Status NVD: Deferred
CVSS 3.1: 8.3 (High), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-15: External Control of System or Configuration Setting
CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
EPSS (30 hari): 0,50% peluang dieksploitasi; lebih tinggi dari 41,1% 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

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.