cms.gaggle.net Leak: What a 771-Record Combolist Means for You

cms.gaggle.net: What This 771-Record Combolist Actually Is

HEROIC analysts identified a file titled "cms.gaggle.net - 771 emails," uploaded to a Telegram channel and added to our breach intelligence database. The file contains 771 records of email addresses paired with plaintext passwords and login URLs tied to cms.gaggle.net. The credentials were leaked on 10 June 2026.

Why This Is Dangerous

This file is what security researchers call a combolist: a ready-to-use set of email and password pairs, in this case linked specifically to cms.gaggle.net logins. Because the passwords are plaintext and the URL is included, anyone who downloads this file can attempt to log in immediately, with no extra steps needed to make the credentials usable.

What Was Exposed

• Email addresses
• Plaintext passwords
• Associated login URLs

Why This Matters

Combolists like this one feed directly into credential stuffing, where attackers automate login attempts across many sites using the same email and password pair. If the password tied to your cms.gaggle.net account has been reused on email, banking, or social media accounts, this leak can lead to account takeover, identity theft, or financial fraud on services well outside cms.gaggle.net itself.

How a Combolist Actually Works

A combolist is not a hacking tool in itself, it is a spreadsheet-style file of already-stolen login pairs, often gathered from smaller breaches, phishing pages, or malware infections and organized by source, as this one is organized around cms.gaggle.net. Criminals load these files into automated tools that try each pair across many websites in minutes, which is why a small 771-record file can still cause outsized damage.

Check If You Are Affected

If you have ever used an email address on cms.gaggle.net or anywhere similar, it is worth checking whether your credentials appear in this leak or any other. HEROIC's free breach scanner searches more than 400 billion leaked records so you can confirm your exposure and reset any passwords that need it.