Description
File Browser provides a file managing interface within a specified directory and can be used to upload, delete, preview, rename, and edit files. Prior to version 2.55.0, the JSONAuth. Auth function contains a logic flaw that allows unauthenticated attackers to enumerate valid usernames by measuring the response time of the /api/login endpoint. The vulnerability exists due to a "short-circuit" evaluation in the authentication logic. When a username is not found in the database, the function returns immediately. However, if the username does exist, the code proceeds to verify the password using bcrypt (users.CheckPwd), which is a computationally expensive operation designed to be slow. This difference in execution path creates a measurable timing discrepancy. Version 2.55.0 contains a patch for the issue.
INFO
Published Date :
2026-01-19T20:37:29.716Z
Last Modified :
2026-01-20T15:54:36.499Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-23849 vulnerability.
| Vendors | Products |
|---|---|
| Filebrowser |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23849.
