{"id":"CVE-2026-121450","published":"2026-11-03T16:17:23.787","lastModified":"2026-11-03T16:30:49.290","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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-760"],"vendors":[],"products":[],"references":[{"url":"https://github.com/PAICNI/CFNext","tags":[]},{"url":"https://github.com/PAICNI/CFNext/blob/1c7b3d8bed5b06a1449ea28302bb9a648f67e8e1/CFNext-%E6%98%8E%E6%96%87%E7%89%88.js#L12","tags":[]},{"url":"https://github.com/PAICNI/CFNext/blob/1c7b3d8bed5b06a1449ea28302bb9a648f67e8e1/CFNext-%E6%98%8E%E6%96%87%E7%89%88.js#L2440","tags":[]},{"url":"https://github.com/PAICNI/CFNext/commit/ca8ad82bb7c635f765c82a1cd0c954fd70d81fb7","tags":[]},{"url":"https://github.com/PAICNI/CFNext/issues/57","tags":[]},{"url":"https://www.vulncheck.com/advisories/cfnext-before-3.1.0-admin-password-recovery-via-md5-derived-subscription-uuid","tags":[]}],"exploitRefs":[{"url":"https://github.com/PAICNI/CFNext","tags":[]},{"url":"https://github.com/PAICNI/CFNext/blob/1c7b3d8bed5b06a1449ea28302bb9a648f67e8e1/CFNext-%E6%98%8E%E6%96%87%E7%89%88.js#L12","tags":[]},{"url":"https://github.com/PAICNI/CFNext/blob/1c7b3d8bed5b06a1449ea28302bb9a648f67e8e1/CFNext-%E6%98%8E%E6%96%87%E7%89%88.js#L2440","tags":[]},{"url":"https://github.com/PAICNI/CFNext/commit/ca8ad82bb7c635f765c82a1cd0c954fd70d81fb7","tags":[]},{"url":"https://github.com/PAICNI/CFNext/issues/57","tags":[]}],"hasPoc":true,"ai":null}