---
cve: "CVE-2026-72587"
severity: "MEDIUM"
cvss: 6.1
epss: "19%"
vendor: "CoreBunch"
kev: false
exploited: false
published: "2026-08-10 11:17:31"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T02:19:48+02:00"
---

# CVE-2026-72587

> 6.1 MEDIUM · 🧪 PoC

## Beschreibung

A cache poisoning vulnerability in CoreBunch/Instatic through 0.0.14 allows an unauthenticated remote attacker to poison the shared process-wide render cache by manipulating the u query parameter of the GET /_instatic/hole/ server island endpoint.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- d1f0942b1c1eb8842b032e6718bfbdabf25cd6d0 (Commit)

## Referenzen

- <https://github.com/CoreBunch/Instatic>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-72587) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_