---
cve: "CVE-2026-88409"
severity: "HIGH"
cvss: 8.8
epss: "0.3%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-09-21 00:00:00"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-24T15:23:23+02:00"
---

# CVE-2026-88409

> 8.8 HIGH · 🧪 PoC

## Beschreibung

FalkorDB (Redis module) v4.20.1 to v4.20.4 was discovered to contain a buffer overflow in the _Decode_GrB_Matrix function (/v19/decode_matrix.c). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/FalkorDB/FalkorDB/issues/2399>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-88409) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_