CVE-2025-66482

Katalog CVE

CVSS 6.5 · Medium EPSS 0,34%

Kerentanan Improper Restriction of Excessive Authentication Attempts pada misskey. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

Misskey is an open source, federated social media platform. Attackers who use an untrusted reverse proxy or not using a reverse proxy at all can bypass IP rate limiting by adding a forged X-Forwarded-For header. Starting with version 2025.9.1, an option (`trustProxy`) has been added in config file to prevent this from happening. However, it is initialized with an insecure default value before version 2025.12.0-alpha.2, making it still vulnerable if the configuration is not set correctly. This is patched in v2025.12.0-alpha.2 by flipping default value of `trustProxy` to `false`. Users of a trusted reverse proxy who are unsure if they manually overode this value should check their config for optimal behavior. Users are running Misskey with a trusted reverse proxy should not be affected by this vulnerability. From v2025.9.1 to v2025.11.1, workaround is available. Set `trustProxy: false` in config file.

Rincian

Terbit di NVD

16 Desember 2025

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-307: Improper Restriction of Excessive Authentication Attempts
CWE-1188: Initialization of a Resource with an Insecure Default

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/misskey-dev/misskey/security/advisories/GHSA-wwrj-3hvj-prpm exploit · advisory vendor
• https://github.com/misskey-dev/misskey/commit/5512898463fa8487b9e6488912f35102b91f25f7 patch