Vulnerability · Published Oct 14, 2026 · Assigned by GitHub_M

CVE-2026-104108FileRise OIDC login can bind an attacker identity to an existing local account

High 8.1

In plain English

A high-severity improper authentication in FileRise from error311. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.2%top 87.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
error311	FileRise	< 3.23.0

Weakness: CWE-287, CWE-290, CWE-345 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/error311/FileRise/security/advisories/GHSA-c5c5-mv9m-j367 x_refsource_CONFIRM
https://github.com/error311/FileRise/commit/cc1118923b522baff28dca05bdd79c27f984c68a x_refsource_MISC
https://github.com/error311/FileRise/releases/tag/v3.23.0 x_refsource_MISC