---
cve: "CVE-2026-51583"
severity: "HIGH"
cvss: 8.5
epss: "29%"
vendor: "n/a"
kev: false
exploited: false
published: "2026-08-11 14:17:14"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T04:13:06+02:00"
---

# CVE-2026-51583

> 8.5 HIGH · 🧪 PoC

## Beschreibung

An issue in usememos through v0.30.0 allows a remote authenticated attacker to perform Server-Side Request Forgery (SSRF) via the Webhook validation mechanism in internal/webhook/validate.go, by setting a webhook target to an internal address.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 2036c1ffc1b0a1e1fa6a473738c2a5ef520df67f (Commit)

## Referenzen

- <https://github.com/usememos/memos>
- <https://gist.github.com/seiyaibuki0523/d8af15eb555808319a2633269a9ebb80>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-51583) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_