Improper Handling of Case Sensitivity Affecting github.com/filebrowser/filebrowser/http package, versions <2.57.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published12 Feb 2026
- disclosed10 Feb 2026
- creditdogadmin
Introduced: 10 Feb 2026
CVE-2026-25889 Â (opens in a new tab)How to fix?
Upgrade github.com/filebrowser/filebrowser/http to version 2.57.1 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Case Sensitivity due to improper handling of case sensitivity in the userPutHandler function. An attacker can gain unauthorized access to user accounts and modify passwords without verification by submitting API requests with field names in a different case, such as "Password" instead of "password", thereby bypassing the current password check.
Note: This is only exploitable if an attacker has obtained a valid JWT token for the target account.