---
cve: "CVE-2026-23876"
severity: "HIGH"
cvss: 8.1
epss: "59%"
vendor: "ImageMagick"
kev: false
exploited: false
published: "2026-01-20 01:15:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T21:30:44+02:00"
---

# CVE-2026-23876

> 8.1 HIGH · 🧪 PoC

## Beschreibung

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder (ReadXBMImage) allows an attacker to write controlled data past the allocated heap buffer when processing a maliciously crafted image file. Any operation that reads or identifies an image can trigger the overflow, making it exploitable via common image upload and processing pipelines. Versions 7.1.2-13 and 6.9.13-38 fix the issue.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- dd991e286b96918917a3392d6dc3ffc0e6907a4e (Commit)
- 2fae24192b78fdfdd27d766fd21d90aeac6ea8b8 (Commit)

## Referenzen

- <https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-r49w-jqq3-3gx8>
- <https://github.com/ImageMagick/ImageMagick/commit/2fae24192b78fdfdd27d766fd21d90aeac6ea8b8>
- <https://access.redhat.com/errata/RHSA-2026:3058>
- <https://access.redhat.com/security/cve/CVE-2026-23876>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2431038>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23876.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-23876) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_