---
cve: "CVE-2026-8199"
severity: "HIGH"
cvss: 7.1
epss: "26%"
vendor: "MongoDB, Inc."
kev: false
exploited: false
published: "2026-05-13 04:17:41"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T18:37:35+02:00"
---

# CVE-2026-8199

> 7.1 HIGH

## Beschreibung

An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM.

This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/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)

- c4112034073d61ecdfc209fb769c6b08102af643 (Commit)
- e1c5eb1c5d29781674274ced38871c117967302e (Commit)

## Referenzen

- <https://jira.mongodb.org/browse/SERVER-122449>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-8199) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_