---
cve: "CVE-2026-72584"
severity: "HIGH"
cvss: 7.4
epss: "25%"
vendor: "fastschema"
kev: false
exploited: false
published: "2026-08-10 11:17:31"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T07:07:26+02:00"
---

# CVE-2026-72584

> 7.4 HIGH · 🧪 PoC

## Beschreibung

A time-of-check/time-of-use (TOCTOU) race condition in fastschema through v0.15.1 allows an unauthenticated remote attacker to bypass the OTP attempt limit on the account recovery flow, enabling brute-force attacks on 6-digit OTP codes.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 5613d16fe7d144abed0c880abe9f4c49897cf1f5 (Commit)

## Referenzen

- <https://github.com/fastschema/fastschema>
- <https://github.com/fastschema/fastschema/blob/main/pkg/auth/local.go>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-72584) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_