# CVE-2026-84306: Filament app-based multi-factor authentication bypass via reused one-time codes

Source: https://junglewise.ai/threats/cve-2026-84306-filament-app-based-multi-factor-authentication-bypass-via-reused  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-01. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-84306 · Severity: medium · CVSS 6.5 · Published 2026-09-01

Filament is a Laravel admin panel library used to build administrative dashboards for applications. A flaw in its app-based multi-factor authentication (MFA) system allows attackers who have obtained a user's password and a single one-time code to reuse that code multiple times within its validity window (approximately four minutes). This means an attacker can authenticate to user accounts even after the legitimate user has already logged in with a newer code, bypassing a critical security control.

Technologies: [Filament](https://junglewise.ai/threats/technologies/filament), [filament/filament (Packagist)](https://junglewise.ai/threats/technologies/filament-filament). Vendors: [Filament](https://junglewise.ai/threats/vendors/filament), [Packagist](https://junglewise.ai/threats/vendors/packagist).

## Quick answers

**Is CVE-2026-84306 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-84306 being exploited in the wild.

**How severe is CVE-2026-84306?** Medium severity, with a CVSS score of 6.5, published 1 September 2026.

**Which products and versions are affected?** Filament 4.0.0 to 4.12.5, 5.0.0 to 5.7.5; filament/filament (Packagist) ECOSYSTEM:introduced=4.0.0,fixed=4.12.6.

**Is there a fix for CVE-2026-84306?** Yes. filament/filament (Packagist): upgrade to 4.12.6 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-84306 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-84306?** Check whether you run Filament or filament/filament (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- filament/filament (Packagist): upgrade to 4.12.6 or later

  ```sh
  composer require filament/filament:^4.12.6
  ```


## Technical details

This vulnerability exists in Filament's app-based MFA implementation (CWE-294: Authentication Bypass by Capture-replay). The vulnerable component fails to properly invalidate previously issued one-time codes after a newer code from the same time window has been successfully authenticated. While duplicate submission of the exact same code was already blocked, any other code generated within the acceptance window remained valid. An attacker who obtains a user's password and intercepts or gains knowledge of a single TOTP code can replay that code to authenticate as the victim user for up to four minutes (default settings), even after the legitimate user has already used a subsequent code to log in. The attack requires prior compromise of both password and a single code, but no user interaction. Patches are available in Filament 4.12.6 and 5.7.6.

## Affected products

- Filament Filament 4.0.0 to 4.12.5, 5.0.0 to 5.7.5

## Identifiers

- CVE-2026-84306
- GHSA-r3j6-gpjw-qfjr

## Timeline

- 2026-08-17: disclosed: Vulnerability published by GitHub Advisory Database
- 2026-08-17: patched: Patches released in Filament 4.12.6 and 5.7.6
- 2026-09-01: advisory: Advisory updated in GitHub Advisory Database

## References

- [https://api.github.com/users/rianorie](https://api.github.com/users/rianorie)
- [https://github.com/rianorie](https://github.com/rianorie)
- [https://api.github.com/users/rianorie/gists%7B/gist_id%7D](https://api.github.com/users/rianorie/gists%7B/gist_id%7D)
- [https://api.github.com/users/rianorie/repos](https://api.github.com/users/rianorie/repos)
- [https://avatars.githubusercontent.com/u/2292861?v=4](https://avatars.githubusercontent.com/u/2292861?v=4)
- [https://api.github.com/users/rianorie/events%7B/privacy%7D](https://api.github.com/users/rianorie/events%7B/privacy%7D)

## Related threats

- [Filament multi-factor authentication bypass without password](https://junglewise.ai/threats/cve-2026-104181-filament-is-a-collection-of-full-stack-components-for)
- [Filament password validity disclosure in login MFA](https://junglewise.ai/threats/cve-2026-84307-filament-password-validity-disclosure-in-login-mfa)
- [Filament multi-factor authentication bypass in app-based MFA](https://junglewise.ai/threats/cve-2026-77567-filament-multi-factor-authentication-bypass-in-app-based-mfa)
- [Filament MFA recovery code reuse via concurrent submission](https://junglewise.ai/threats/cve-2026-48505-filament-mfa-recovery-code-reuse-via-concurrent-submission)
- [Filament unauthenticated temporary file upload in auth components](https://junglewise.ai/threats/cve-2026-48500-filament-unauthenticated-temporary-file-upload-in-auth-components)