### [CVE-2024-36107](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36107)
![](https://img.shields.io/static/v1?label=Product&message=minio&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3D%20%3C%20RELEASE.2024-05-27T19-17-46Z%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-200%3A%20Exposure%20of%20Sensitive%20Information%20to%20an%20Unauthorized%20Actor&color=brighgreen)

### Description

MinIO is a High Performance Object Storage released under GNU Affero General Public License v3.0. `If-Modified-Since` and `If-Unmodified-Since` headers when used with anonymous requests by sending a random object name requests can be used to determine if an object exists or not on the server on a specific bucket and also gain access to some amount ofinformation such as  `Last-Modified (of the latest version)`, `Etag (of the latest version)`, `x-amz-version-id (of the latest version)`, `Expires (metadata value of the latest version)`, `Cache-Control (metadata value of the latest version)`. This conditional check was being honored before validating if the anonymous access is indeed allowed on the metadata of an object. This issue has been addressed in commit `e0fe7cc3917`. Users must upgrade to RELEASE.2024-05-27T19-17-46Z for the fix. There are no known workarounds for this issue.

### POC

#### Reference
- https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/If-Modified-Since

#### Github
No PoCs found on GitHub currently.