CVE-2026-57490 FileRise: WebDAV authentication bypasses TOTP/MFA entirely
Attackers with valid credentials can bypass TOTP/MFA on WebDAV access, allowing unauthorized file operations if WebDAV is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-57490?
CVE-2026-57490 is a high-severity authentication bypass vulnerability in error311 FileRise, published on 14 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, when an administrator has enabled WebDAV, FileRise WebDAV Basic authentication validates only the account username and password through AuthModel::authenticate() and does not enforce the account's configured TOTP factor. An attacker who knows valid primary credentials for a TOTP-enabled account can authenticate to the enabled WebDAV service without supplying the second factor and exercise the account's WebDAV file permissions. The browser login path enforces TOTP, but the separate public/webdav.php authentication callback did not. This issue is fixed in version 3.16.0.
Weakness: CWE-308
Which versions are affected by CVE-2026-57490?
How do I fix CVE-2026-57490?
No fix has been published for CVE-2026-57490 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-57490 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-57490 exists.
Sources
Also known as GHSA-cx7g-xhj8-8cx3.