---
cve: "CVE-2026-82059"
severity: "MEDIUM"
cvss: 6.0
epss: "0.3%"
vendor: "MONGODB"
kev: false
exploited: false
published: "2026-09-08 17:18:34"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T03:06:59+02:00"
---

# CVE-2026-82059

> 6.0 MEDIUM

## Beschreibung

An internal aggregation expression in MongoDB Server was incorrectly registered as accessible to any authenticated user rather than being restricted to internal cluster operations. By crafting a malformed index specification within this expression, an authenticated user with read-only privileges could trigger an assertion failure in the index key generation code path. In certain build configurations, this assertion failure results in termination of the mongod process, causing a denial of service to all connected clients.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 6df23543fc9e7ee456ff05ed726b22865ea753e7 (Commit)
- 11c3ed7c274d5fb7149e498323bd0377c3a2876e (Commit)

## Referenzen

- <https://jira.mongodb.org/browse/SERVER-130571>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-82059) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_