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.
Published: 2026-11-03
Score: 7.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sat, 07 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 06 Nov 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Paicni
Paicni cfnext
Vendors & Products Paicni
Paicni cfnext

Tue, 03 Nov 2026 15:30:00 +0000

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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-07T03:05:12.466Z

Reserved: 2026-11-03T12:33:53.716Z

Link: CVE-2026-121450

cve-icon Vulnrichment

Updated: 2026-11-07T03:05:04.176Z

cve-icon NVD

Status : Deferred

Published: 2026-11-03T16:17:23.787

Modified: 2026-11-07T04:17:16.850

Link: CVE-2026-121450

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T21:42:14Z

Weaknesses