What is CVE-2026-104108?

CVE-2026-104108 is a high-severity vulnerability in Error311 Filerise, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-10-14.

How severe is CVE-2026-104108?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Error311 Filerise

CVE-2026-104108

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise maps an authenticated OIDC identity to a local account using mutable preferred_username or email claims and does not require email_verified for email-based naming. An attacker who can obtain provider-issued claims colliding with an existing local username can be logged in as that account, including the built-in administrator, even when automatic provisioning is disabled. Exploitability depends on the configured identity provider allowing the colliding claim. This issue is fixed in version 3.23.0.

Vulnerability class: Broken Authentication

Published 2026-10-14 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Error311 Filerise — versions < 3.23.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-104108?: CVE-2026-104108 is a high-severity vulnerability in Error311 Filerise, classified under Improper Authentication. CVSS score: 8.1/10. Published 2026-10-14.
How severe is CVE-2026-104108?: High severity. CVSS v3 base score is 8.1 out of 10.