---
cve: "CVE-2022-40482"
severity: "MEDIUM"
cvss: 5.3
epss: "88%"
vendor: "n/a"
kev: false
exploited: false
published: "2023-04-25 19:15:10"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T18:33:32+02:00"
---

# CVE-2022-40482

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

The authentication method in Laravel 8.x through 9.x before 9.32.0 was discovered to be vulnerable to user enumeration via timeless timing attacks with HTTP/2 multiplexing. This is caused by the early return inside the hasValidCredentials method in the Illuminate\Auth\SessionGuard class when a user is found to not exist.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- a684da6197ae77eee090637ae4411b2f321adfc7 (Commit)
- aae3b59f82434176546c9dd10804adda16da5278 (Commit)

## Referenzen

- <https://ephort.dk/blog/laravel-timing-attack-vulnerability/>
- <https://github.com/ephort/laravel-user-enumeration-demo>
- <https://github.com/laravel/framework/pull/44069>
- <https://github.com/laravel/framework/releases/tag/v9.32.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-40482) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_