Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission
A flaw in the handling of recovery codes for app-based multi-factor authentication allows the same recovery code to be reused via concurrent submission. This issue does not affect email-based MFA. It also only applies when recovery codes are enabled.
If an attacker gains access to both the user's password and their recovery codes, they get two authenticated sessions per recovery code burned instead of one, or more if they batch the parallel submissions wider, materially extending the attacker's window of access compared to what the single-use guarantee implies.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | filament/filament | >= 4.0.0, < 4.11.5, >= 5.0.0, < 5.6.5 | 4.11.5, 5.6.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-362, CWE-841- Platform
- Composer
- Package
filament/filament- Disclosed
- 25.06.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mc5j-f6wx-h9qh - CC BY 4.0
Vulnerability history: filament/filament
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 8
- First → latest
- 12.2025 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 4
- Low 1
Disclosures per year
- 2025: 1
- 2026: 7
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Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission this entry
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