CVE-2026-18691: mongodb

csirt@kutim:~/threat-intel/cve/CVE-2026-18691

CVSS 8.8 · High EPSS 0,36%

Kerentanan Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade') pada mongodb. Skor CVSS 3.1 8.8 (High) menurut mongodb.com.

Deskripsi (NVD)

An issue in MongoDB Server's intra-cluster connection setup could allow a party with suitable network access to influence which authentication mechanism is used when one replica set member connects to another. Under certain conditions, this could cause the cluster's shared internal credential to be transmitted in a less-protected form, potentially allowing that credential to be recovered. If recovered, the credential could be used to authenticate as the internal superuser to nodes in the deployment.

Rincian

Terbit di NVD: 11 Agustus 2026
Terakhir diubah: 16 September 2026
Status NVD: Analyzed
CVSS 3.1: 8.8 (High), sumber mongodb.com
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-757: Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
EPSS (30 hari): 0,36% peluang dieksploitasi; lebih tinggi dari 27,4% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
mongodb	mongodb	Versi 7.0.0 hingga sebelum 7.0.40
mongodb	mongodb	Versi 8.0.0 hingga sebelum 8.0.29
mongodb	mongodb	Versi 8.2.0 hingga 8.2.12
mongodb	mongodb	Versi 8.3.0 hingga sebelum 8.3.8
mongodb	mongodb	Versi 9.0.0 alpha0
mongodb	mongodb	Versi 9.0.0 alpha1
mongodb	mongodb	Versi 9.1.0 alpha0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://jira.mongodb.org/browse/SERVER-130264 advisory vendor · issue tracking

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.