---
cve: "CVE-2026-5807"
severity: "HIGH"
cvss: 7.5
epss: "72%"
vendor: "Hashicorp"
kev: false
exploited: false
published: "2026-04-17 05:16:19"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T08:23:37+02:00"
---

# CVE-2026-5807

> 7.5 HIGH

## Beschreibung

Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.

## CVSS-Vektor

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

| 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 | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- cf1ce4df8af6e323558bd5f8c37e771388cbc951 (Commit)

## Referenzen

- <https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345>
- <https://access.redhat.com/security/cve/CVE-2026-5807>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2459109>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-5807) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_