---
cve: "CVE-2026-59205"
severity: "HIGH"
cvss: 7.5
epss: "0.4%"
vendor: "python-pillow"
kev: false
exploited: false
published: "2026-07-14 16:17:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T08:40:27+02:00"
---

# CVE-2026-59205

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- bb1d8e8ab8d29048624d96e3ee53cecf7c13d13d (Commit)
- a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721 (Commit)

## Referenzen

- <https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6>
- <https://github.com/python-pillow/Pillow/pull/9715>
- <https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721>
- <https://github.com/python-pillow/Pillow/releases/tag/12.3.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59205) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_