Improper Authentication Affecting github.com/filebrowser/filebrowser/v2/auth package, versions >=2.0.0-rc.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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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMFILEBROWSERFILEBROWSERV2AUTH-17748406
- published1 Jul 2026
- disclosed25 Jun 2026
- creditUnknown
Introduced: 25 Jun 2026
CVE-2026-54089 (opens in a new tab)How to fix?
There is no fixed version for github.com/filebrowser/filebrowser/v2/auth.
Overview
Affected versions of this package are vulnerable to Improper Authentication via the proxy authentication process. An attacker can gain unauthorized access and impersonate any user, including administrative accounts, by sending a forged HTTP header directly to the server. Additionally, specifying a non-existent username results in automatic creation of a new user account without authorization.