---
cve: "CVE-2026-86118"
severity: "MEDIUM"
cvss: 4.3
epss: "6.5%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2026-09-05 10:16:43"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T18:42:54+02:00"
---

# CVE-2026-86118

> 4.3 MEDIUM

## Beschreibung

gonic versions before 0.22.0 fail to validate administrator privileges in the startScan endpoint, allowing any authenticated user to trigger media library rescans. Attackers can repeatedly call the startScan endpoint to force CPU and I/O-intensive filesystem operations, causing denial of service on multi-user instances.

## CVSS-Vektor

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

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

## Referenzen

- <https://github.com/sentriz/gonic>
- <https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/ctrl.go>
- <https://github.com/sentriz/gonic/blob/v0.21.0/server/ctrlsubsonic/handlers_common.go>
- <https://github.com/sentriz/gonic/releases/tag/v0.22.0>
- <https://github.com/sentriz/gonic/security/advisories/GHSA-453r-pgfw-h3pq>
- <https://www.vulncheck.com/advisories/gonic-before-0.22.0-missing-administrator-check-on-the-subsonic-startscan-endpoint>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86118) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_