CVE-2026-121450

CFNext before 3.1.0 Admin Password Recovery via MD5-Derived Subscription UUID

Published Nov 3, 2026 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Paicni
Paicni cfnext
Vendors & Products Paicni
Paicni cfnext
Type Values Removed Values Added
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.
Title CFNext before 3.1.0 Admin Password Recovery via MD5-Derived Subscription UUID
Weaknesses CWE-760
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 7, 2026, 3:05 AM
Reserved
Nov 3, 2026, 12:33 PM
Status
Deferred
Published
Nov 3, 2026, 4:17 PM
Modified
Nov 7, 2026, 4:17 AM