---
cve: "CVE-2026-59509"
severity: "CRITICAL"
cvss: 9.2
epss: "35%"
vendor: "cve-search"
kev: false
exploited: false
published: "2026-07-05 13:16:56"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T23:08:37+02:00"
---

# CVE-2026-59509

> 9.2 CRITICAL · 🧪 PoC

## Beschreibung

An unauthenticated improper input validation vulnerability in the POST /fetch_cve_data endpoint in cve-search. A remote attacker can manipulate request parameters controlling the MongoDB collection, projected fields, and regular-expression filters to read arbitrary application MongoDB collections. This can expose administrative usernames and password hashes from the mgmt_users collection, enabling offline password cracking and potential administrative account compromise.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Referenzen

- <https://github.com/cve-search/cve-search/pull/1218>
- <https://github.com/cve-search/cve-search/issues/1217>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59509) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_