---
cve: "CVE-2026-82973"
severity: "CRITICAL"
cvss: 9.4
epss: "0.4%"
vendor: "psyb0t"
kev: false
exploited: false
published: "2026-09-29 13:17:52"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-02T18:59:04+02:00"
---

# CVE-2026-82973

> 9.4 CRITICAL

## Beschreibung

Improper neutralization of CRLF sequences in IMAP command construction in psyb0t/docker-mailbox before 0.4.13 allows a remote unauthenticated attacker, when bearer-token authentication is not configured, to inject additional IMAP commands into an authenticated upstream mailbox connection via crafted folder, UID, or search values.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitLab**
- State: PUBLISHED
- Stand: 2026-09-29 14:35:12
- CNA-CVSS: **9.4** (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **partial**

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 90e6b492d42e011d0ba2c825795b33d054ee6636 (Commit)

## Referenzen

- <https://gitlab.com/psyb0t/docker-mailbox/-/commit/90e6b492d42e011d0ba2c825795b33d054ee6636>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-82973) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_