---
cve: "CVE-2026-56361"
severity: "MEDIUM"
cvss: 4.8
epss: "13%"
vendor: "ImageMagick"
kev: false
exploited: false
published: "2026-06-30 23:17:31"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T18:31:02+02:00"
---

# CVE-2026-56361

> 4.8 MEDIUM · 🧪 PoC

## Beschreibung

ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 9fbd2b79450e930edb95e8158d412e57a7b27e83 (Commit)
- 9da424baef0c23b1b05678b2c31102e35313adc5 (Commit)

## Referenzen

- <https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q8h3-jv9v-57qx>
- <https://www.vulncheck.com/advisories/imagemagick-heap-buffer-overflow-via-off-by-one-in-morphology-processing>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-56361) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_