---
cve: "CVE-2026-44787"
severity: "HIGH"
cvss: 8.2
epss: "27%"
vendor: "discourse"
kev: false
exploited: false
published: "2026-07-09 22:17:04"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-14T20:07:37+02:00"
---

# CVE-2026-44787

> 8.2 HIGH · 🧪 PoC

## Beschreibung

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, the signup flow could allow newly registered users to set primary_group_id and gain whisper-group privileges without legitimate group membership on sites with whispers_allowed_groups configured. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.

## CVSS-Vektor

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

| 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 | Hoch | bad |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- c06899647d758493d95a5b301e573ffa3db1e878 (Commit)
- 4bbdddfc6700ca23604242111d4fa0e00347af97 (Commit)

## Referenzen

- <https://github.com/discourse/discourse/security/advisories/GHSA-vmwq-jvxx-jwfx>
- <https://github.com/discourse/discourse/commit/012796ac28c85b30aa233c5ef042fc66efff8126>
- <https://github.com/discourse/discourse/commit/0f50a07a6ef4b33f3f826ce6d7bf6d7bd16912d8>
- <https://github.com/discourse/discourse/commit/5418e3027dba109e27a4796463686d61e190ac29>
- <https://github.com/discourse/discourse/commit/6fc7e6cf04422fc3f9d1c99134803071e983ff0a>
- <https://github.com/discourse/discourse/releases/tag/v2026.1.5>
- <https://github.com/discourse/discourse/releases/tag/v2026.4.2>
- <https://github.com/discourse/discourse/releases/tag/v2026.5.1>
- <https://github.com/discourse/discourse/releases/tag/v2026.6.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-44787) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_