CVE-2026-121450

HighCVSS 7.5/10Last modified Nov 7, 2026

Description

CFNext before 3.1.0 contains a weak cryptographic derivation vulnerability that allows subscription link holders to recover the admin password because the subscription UUID is an MD5 of the password with a fixed public salt. Attackers can brute-force the password offline without rate limiting, log into the admin panel, and read stored Trojan, Clash, Telegram and Cloudflare API secrets.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-760

Affected software

No affected versions have been published.

Timeline

Published: Nov 3, 2026
Last modified: Nov 7, 2026
NVD status: Deferred

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