https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 08 Oct 2026 08:42:03 +0000 https://cve.radiocsirt.org/vuln/euvd-2026-330377 EUVD-2026-330377 https://cve.radiocsirt.org/vuln/euvd-2026-330377 https://cve.radiocsirt.org/vuln/fkie_cve-2026-54089 <p>File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Starting with 2.0.0-rc.1, when FileBrowser is configured with proxy authentication (auth.method=proxy), any unauthenticated attacker who can reach the server directly can impersonate any user - including admin - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to automatically create a new user account, providing an account creation primitive with no authorization. This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.</p> <p>File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Starting with 2.0.0-rc.1, when FileBrowser is configured with proxy authentication (auth.method=proxy), any unauthenticated attacker who can reach the server directly can impersonate any user - including admin - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to automatically create a new user account, providing an account creation primitive with no authorization. This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-54089 https://cve.radiocsirt.org/vuln/ghsa-xqp3-jq6g-x3qm <p><strong>Affected:</strong> Go: github.com/filebrowser/filebrowser/v2</p> <p>## Summary</p> <p>When FileBrowser is configured with proxy authentication (`auth.method=proxy`), any unauthenticated attacker who can reach the server directly can impersonate **any user - including admin** - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to **automatically create a new user account**, providing an account creation primitive with no authorization.</p> <p>**This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.**</p> <p>## Severity</p> <p>**HIGH** - CVSS 3.1: **8.1** (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)</p> <p>## Affected Component</p> <p>- **File:** [`auth/proxy.go`](https://github.com/filebrowser/filebrowser/blob/main/auth/proxy.go), lines 21-28 - **CWE:** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) (Improper Authentication), [CWE-290](https://cwe.mitre.org/data/definitions/290.html) (Authentication Bypass by Spoofing) - **Affected versions:** All versions supporting `auth.method=proxy`</p> <p>## Prerequisite: Proxy Auth Must Be Enabled</p> <p>This vulnerability is **NOT exploitable on default configuration** (`auth.method=json`). It requires the administrator to have configured proxy authentication mode. However, this is a **common production deployment pattern** - many organizations run FileBrowser behind a reverse proxy that handles SSO/LDAP/OAuth authentication:</p> <p>- **nginx** + Authelia / Authentik - **…</p> <p><strong>Affected:</strong> Go: github.com/filebrowser/filebrowser/v2</p> <p>## Summary</p> <p>When FileBrowser is configured with proxy authentication (`auth.method=proxy`), any unauthenticated attacker who can reach the server directly can impersonate **any user - including admin** - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to **automatically create a new user account**, providing an account creation primitive with no authorization.</p> <p>**This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.**</p> <p>## Severity</p> <p>**HIGH** - CVSS 3.1: **8.1** (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)</p> <p>## Affected Component</p> <p>- **File:** [`auth/proxy.go`](https://github.com/filebrowser/filebrowser/blob/main/auth/proxy.go), lines 21-28 - **CWE:** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) (Improper Authentication), [CWE-290](https://cwe.mitre.org/data/definitions/290.html) (Authentication Bypass by Spoofing) - **Affected versions:** All versions supporting `auth.method=proxy`</p> <p>## Prerequisite: Proxy Auth Must Be Enabled</p> <p>This vulnerability is **NOT exploitable on default configuration** (`auth.method=json`). It requires the administrator to have configured proxy authentication mode. However, this is a **common production deployment pattern** - many organizations run FileBrowser behind a reverse proxy that handles SSO/LDAP/OAuth authentication:</p> <p>- **nginx** + Authelia / Authentik - **…</p> https://cve.radiocsirt.org/vuln/ghsa-xqp3-jq6g-x3qm