---
cve: "CVE-2026-61907"
severity: "MEDIUM"
cvss: 4.3
epss: "0.4%"
vendor: "cyrusimap"
kev: false
exploited: false
published: "2026-09-09 19:17:28"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-22T00:29:32+02:00"
---

# CVE-2026-61907

> 4.3 MEDIUM

## Beschreibung

An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An authenticated user with insert permissions on another user's snoozed mailbox could cause insertion of mail to that user's inbox, or any other of their mailboxes whose id was known to the user, despite having no insert permissions to the target mailbox.

## CVSS-Vektor

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

| 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 | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://cyrusimap.org>
- <https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.4.html>
- <https://www.cyrusimap.org/3.12/imap/download/release-notes/3.10/x/3.10.4.html>
- <https://www.cyrusimap.org/3.12/imap/download/release-notes/3.8/x/3.8.8.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-61907) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_