---
cve: "CVE-2025-30373"
severity: "MEDIUM"
cvss: 6.5
epss: "0.3%"
vendor: "Graylog2"
kev: false
exploited: false
published: "2025-04-07 15:15:43"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T19:30:56+02:00"
---

# CVE-2025-30373

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

Graylog is a free and open log management platform. Starting with 6.1, HTTP Inputs can be configured to check if a specified header is present and has a specified value to authenticate HTTP-based ingestion. Unfortunately, even though in cases of a missing header or a wrong value the correct HTTP response (401) is returned, the message will be ingested nonetheless. To mitigate the vulnerability, disable http-based inputs and allow only authenticated pull-based inputs. This vulnerability is fixed in 6.1.9.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

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

| 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 | Gering | warn |
| A Verfügbarkeit | Gering | warn |

## Patch verfügbar (OSV)

- bacfdef1fa5465f3ca6c23084789ad2c26b94c88 (Commit)
- 31bc13d3cd6f550ec83473d0f8666cd3ebf50f10 (Commit)

## BSI-Hinweise (deutsch)

- [Graylog: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-0720)

## Referenzen

- <https://github.com/Graylog2/graylog2-server/security/advisories/GHSA-q7g5-jq6p-6wvx>
- <https://github.com/Graylog2/graylog2-server/commit/31bc13d3cd6f550ec83473d0f8666cd3ebf50f10>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-30373) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_