---
cve: "CVE-2026-81523"
severity: "MEDIUM"
cvss: 4.4
epss: "6.1%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-08-27 20:18:50"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T07:10:07+02:00"
---

# CVE-2026-81523

> 4.4 MEDIUM

## Beschreibung

A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- f12c437858d25a06d55e0a14433d39ef3aa862f4 (Commit)

## Referenzen

- <https://github.com/mongodb/libmongocrypt/releases/tag/1.20.3>
- <https://jira.mongodb.org/browse/MONGOCRYPT-977>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-81523) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_