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.env.bak

Security Researcher Detected: You might have ended up here because your site vulnerability scanner found something interesting. Hi! I'm a security engineer and I'm having a good time interacting with the people and bots that are interested in information security.

You will hopefully find this site is well-secured and I'm not interested in being hacked. I'm interested in learning about how people try to hack me, though.

What is this endpoint?

.env.bak

A file where you can store your sensitive data like API keys, passwords, etc.

What an attacker could do

A served backup of a .env file leaks application secrets - database credentials, API keys, encryption/session keys - allowing full database access, third-party account abuse, and forging of signed tokens.

How to defend it

Store environment files outside the web root, deny dotfile and .bak access in server config, keep secrets in env vars or a secrets manager, and rotate any credentials that may have leaked.

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Want to dive deeper into this topic? Check out the official documentation.

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