CVE-2026-84307 Filament: Password validity disclosure for accounts denied panel access on login page
An attacker can verify valid passwords for accounts denied panel access by observing MFA challenge responses, leaking credential validity.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-84307?
CVE-2026-84307 is a low-severity vulnerability in filamentphp filament, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.12.5 and 5.7.5, packages/panels/src/Auth/Pages/Login.php presents the multi-factor authentication challenge before evaluating canAccessPanel(). For an account that canAccessPanel() denies, submitting the correct password renders the MFA challenge while an incorrect password returns the generic authentication failure, allowing an unauthenticated attacker to confirm whether a candidate password is valid for that account. When email-based MFA is configured, the correct-password path also sends a login code to the account holder. The issue applies only to accounts that have MFA enabled and are denied panel access. Authentication is not bypassed because canAccessPanel() still runs after the challenge, and no session is created. This issue is fixed in versions 4.12.5 and 5.7.5.
Weakness: CWE-204
Which versions are affected by CVE-2026-84307?
4 open source packages ship an affected version, including filament/filament.
| Package | Affected | Fixed in |
|---|---|---|
filament/filament Packagist | From 4.0.0 | 4.12.5 |
filament/filament Packagist | From 4.0.0 | 4.12.5 |
filament/filament Packagist | From 5.0.0 | 5.7.5 |
filament/filament Packagist | From 5.0.0 | 5.7.5 |
How do I fix CVE-2026-84307?
Upgrade filament/filament to a fixed version for your release line: 4.12.5 or 5.7.5.
Is CVE-2026-84307 being exploited?
There is no known exploitation of CVE-2026-84307 in the wild and no public exploit code.
Sources
Also known as GHSA-xwpv-pqxp-5v36.