CVE-2026-42188: geysermc geyser

csirt@kutim:~/threat-intel/cve/CVE-2026-42188

CVSS 4.3 · Medium EPSS 0,28%

Kerentanan Server-Side Request Forgery (SSRF) pada geysermc geyser. Skor CVSS 3.1 4.3 (Medium) menurut NVD.

Deskripsi (NVD)

Geyser is a bridge between Minecraft: Bedrock Edition and Minecraft: Java Edition. Prior to 2.9.3, a server-side request forgery (SSRF) vulnerability exists in Geyser’s handling of Bedrock player head texture data. By supplying a crafted Base64-encoded skin texture URL via the /give command, an attacker can cause the Minecraft server to issue arbitrary HTTP GET requests to attacker-controlled or internal endpoints. This occurs server-side, without proper URL validation, and can be triggered by a Bedrock client. This vulnerability is fixed in 2.9.3.

Rincian

Terbit di NVD: 11 Mei 2026
Terakhir diubah: 25 Agustus 2026
Status NVD: Analyzed
CVSS 3.1: 4.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-918: Server-Side Request Forgery (SSRF)
EPSS (30 hari): 0,28% peluang dieksploitasi; lebih tinggi dari 19,0% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
geysermc	geyser	Semua versi sebelum 2.9.3

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/GeyserMC/Geyser/security/advisories/GHSA-xcfg-fcr5-gw9r exploit · advisory vendor

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.