A shocking 2026 study by Mysterium VPN’s research team uncovers a massive security flaw: nearly 5 million web servers worldwide are leaking sensitive Git repository data.
These misconfigurations leave websites vulnerable to data theft, credential grabs, and full takeovers by hackers.
Git, a popular version control tool, stores project history in hidden .git folders. Developers use these on local machines or private repos, but they accidentally end up on public web servers during deployments.
The study scanned the internet and found 4,964,815 IP addresses exposing .git metadata, enough for attackers to download entire source code histories with just a web browser.
Worst of all, 252,733 servers (about 5%) leak .git/config files packed with live credentials like API keys, passwords, and tokens. This gives hackers a “roadmap” to the company infrastructure.
Key Risks
- Source Code Theft: Attackers reconstruct proprietary software and steal intellectual property.
- Credential Harvesting: Exposed configs hand over access tokens for easy breaches.
- Supply Chain Attacks: Stolen creds let hackers inject malware into repos, infecting all users.
Exposure Statistics
| Data Point | Value |
|---|---|
| IPs with public .git metadata | 4,964,815 |
| Exposed .git/config files | 252,733 |
| Credential exposure rate | ~5.09% |
| Top country (US) | 1,722,949 (~34.70%) |
| Other top locations | Germany (419,102); France (237,593); India (218,661); Singapore (189,900) |
The US dominates with 35% of cases, followed by Germany, France, India, and Singapore. This mirrors cloud hosting hubs, not owner locations.
The problem stems from sloppy deployments: devs copy full project folders, including .git, to live servers. Many web servers (Nginx, Apache, IIS) don’t block dot-files by default, making them public.
Security pros recommend quick fixes:
- Block Access: Update server configs to deny .git and hidden file requests.
- Clean Builds: Use deployment pipelines that strip version control data.
- Rotate Secrets: If exposed, revoke all keys and passwords now.
Simple “sanitization” in pipelines seals this backdoor. Companies ignoring it risk devastating leaks—act fast to protect your code.
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