CVE-2026-86426

Katalog CVE

CVSS 9.8 · Critical EPSS 3,9%

Kerentanan Improper Authentication pada librenms. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

LibreNMS before 26.8.0 contains an authentication bypass vulnerability in the REST API that allows unauthenticated attackers to access protected endpoints by sending numeric values instead of string tokens. Attackers can exploit MySQL type coercion by sending small integers like 0 through 9 to match token hashes, gaining access to API functionality including device credentials and administrative features that enable remote code execution through alert templates.

Rincian

Terbit di NVD

7 September 2026

Terakhir diubah

18 September 2026

Status NVD

Analyzed

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-287: Improper Authentication

EPSS (30 hari)

3,9% peluang dieksploitasi; lebih tinggi dari 89,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/librenms/librenms/security/advisories/GHSA-cvq8-gqfq-3mvg exploit · advisory vendor
• https://www.vulncheck.com/advisories/librenms-before-26.8.0-authentication-bypass-via-api-token-type-confusion advisory pihak ketiga