---
cve: "CVE-2026-21729"
severity: "HIGH"
cvss: 7.5
epss: "26%"
vendor: "Grafana"
kev: false
exploited: false
published: "2026-07-16 04:17:29"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T06:50:23+02:00"
---

# CVE-2026-21729

> 7.5 HIGH

## Beschreibung

Loki queries with large limits can cause large memory allocations which can impact the availability of the service, depending on its deployment strategy.

## CVSS-Vektor

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

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

## Referenzen

- <https://grafana.com/security/security-advisories/cve-2026-21729>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-21729) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_