---
cve: "CVE-2026-0859"
severity: "MEDIUM"
cvss: 5.2
epss: "17%"
vendor: "TYPO3"
kev: false
exploited: false
published: "2026-01-13 12:15:50"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T18:59:05+02:00"
---

# CVE-2026-0859

> 5.2 MEDIUM · 🧪 PoC

## Beschreibung

TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- ee7b28acd9e8b5f0c6eae34f67a67bcc68e0dc96 (Commit)
- 29ccb6fc4887fcb0f0ceac5bfd24d4993176c412 (Commit)

## Referenzen

- <https://typo3.org/security/advisory/typo3-core-sa-2026-004>
- <https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f>
- <https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f>
- <https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-0859) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_