---
cve: "CVE-2026-86751"
severity: "CRITICAL"
cvss: 9.6
epss: "70.7%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-09 14:17:24"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T07:23:59+02:00"
---

# CVE-2026-86751

> 9.6 CRITICAL

## Beschreibung

Snipe-IT before 8.7.0 fails to properly sanitize markdown image syntax in note fields, allowing authenticated users to read arbitrary server files and issue server-side HTTP requests. Attackers can submit markdown image syntax in checkout acceptance notes that survive HTML escaping, are expanded by CommonMark parser, and resolved by laravel-mail-auto-embed via file_get_contents or curl, exfiltrating sensitive files like .env containing APP_KEY.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 1d05a7ce11e6bf9448c067ac3ffbe5e63882888e (Commit)

## Referenzen

- <https://github.com/grokability/snipe-it/security/advisories/GHSA-f3vq-g24v-xc2g>
- <https://www.vulncheck.com/advisories/snipe-it-before-8.7.0-arbitrary-file-read-and-ssrf-via-markdown>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86751) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_