The MongoDB database suffers the first high-level vulnerability of 2026, called MongoBleed. 

Classified as CVSS 8.7, it allowed attackers to read sensitive data directly from the memory of affected servers without authentication.

The exploit was active from December 26th, and since then there were 87,000 publicly accessible instances worldwide. 

Experts confirm that all versions of MongoDB with the zlib comprehension are affected. 

However, they have reported that users can now rest easy because the vulnerability has been fixed.

What does this vulnerability remind us of?

1. Any service that uses a database must be updated and patched quickly when a serious flaw like MongoBleed is discovered.

2. Web service administrators must pay attention to security updates.

What should I do in 2026 to protect myself?

1. Use different passwords for each website or application. 

2. Enable two-factor authentication (2FA).

3. Change your password if a service reports a breach.