Authentication Bypass Using an Alternate Path or Channel Affecting github.com/gtsteffaniak/filebrowser/backend/http package, versions <1.1.3-stable>=1.2.0-beta <1.2.6-beta
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMGTSTEFFANIAKFILEBROWSERBACKENDHTTP-15366269
- published1 Mar 2026
- disclosed25 Feb 2026
- creditByteAfterlife
Introduced: 25 Feb 2026
CVE-2026-27611 Â (opens in a new tab)How to fix?
Upgrade github.com/gtsteffaniak/filebrowser/backend/http to version 1.1.3-stable, 1.2.6-beta or higher.
Overview
Affected versions of this package are vulnerable to Authentication Bypass Using an Alternate Path or Channel via the shareinfo API endpoint. An attacker can access files intended to be protected by a password by directly retrieving the download link from the API response and using it to download the file without authentication.