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TI-2026-84343 Aliases CVE-2026-121450GHSA-49q7-xccc-p35m

CFNext Admin Password Recovery via MD5-Derived Subscription UUID

Priority HIGH 69CWE-760Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

CFNext before 3.1.0 derives the subscription UUID as an MD5 hash of the admin password with a fixed public salt, a weakness classified as CWE-760. Anyone holding a subscription link can brute-force the password offline, since there is no rate limiting. The recovered password opens the admin panel, which exposes stored Trojan, Clash, Telegram and Cloudflare API secrets.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0026 17th percentileScored 2026-11-07
Fix Fixed CFNext (PAICNI): 3.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
PAICNICFNextbefore 3.1.03.1.0Patch availableCNA
  • CFNext VendorPAICNI Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA

Remediation

Upgrade CFNext to 3.1.0, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

  • Fix · CNA CFNext (PAICNI) Fixed in 3.1.0

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121450
  2. 2026-11-03 Alias added: GHSA-49q7-xccc-p35m
  3. 2026-11-05 Priority changed: MEDIUM → LOW
  4. 2026-11-07 CISA SSVC decision points changed
  5. 2026-11-07 Priority changed: LOW → HIGH

References

Patch 1

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences