EIP-2026-106217

PRE-CVE

cPanel 5/6 / Formail-Clone - E-Mail Restriction Bypass

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-106217. PoCs published by Chad C. Keep.

AI-analyzed exploit summary This exploit demonstrates a bypass of cPanel Formail-clone local domain checks, allowing an attacker to use the vulnerable host as an open relay by injecting malformed recipient email addresses.

Description

cPanel 5/6 / Formail-Clone - E-Mail Restriction Bypass

Exploits (1)

exploitdb WORKING POC VERIFIED
by Chad C. Keep · textwebappsphp
https://www.exploit-db.com/exploits/22693

This exploit demonstrates a bypass of cPanel Formail-clone local domain checks, allowing an attacker to use the vulnerable host as an open relay by injecting malformed recipient email addresses.

Classification
Working Poc 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: cPanel Formail-clone
No auth needed
Prerequisites: Access to a vulnerable cPanel Formail-clone instance
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026