---
cve: "CVE-2026-59200"
severity: "HIGH"
cvss: 7.5
epss: "39%"
vendor: "python-pillow"
kev: false
exploited: false
published: "2026-07-14 17:17:14"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T00:01:10+02:00"
---

# CVE-2026-59200

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Pillow is a Python imaging library. From 5.1.0 until 12.3.0, PdfParser.PdfStream.decode() in PIL/PdfParser.py calls zlib.decompress() with bufsize set to the PDF stream Length field without bounding the decompressed output size, allowing a crafted FlateDecode PDF stream to exhaust memory from a small file. 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)
- f7a31ea75e460e108c37126da1f47812f21f6b09 (Commit)

## Referenzen

- <https://github.com/python-pillow/Pillow/security/advisories/GHSA-jjj6-mw9f-p565>
- <https://github.com/python-pillow/Pillow/pull/9718>
- <https://github.com/python-pillow/Pillow/commit/f7a31ea75e460e108c37126da1f47812f21f6b09>
- <https://github.com/python-pillow/Pillow/releases/tag/12.3.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59200) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_