---
cve: "CVE-2026-45205"
severity: "MEDIUM"
cvss: 5.3
epss: "47%"
vendor: "Apache Software Foundation"
kev: false
exploited: false
published: "2026-05-14 12:16:35"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T18:20:51+02:00"
---

# CVE-2026-45205

> 5.3 MEDIUM · 🧪 PoC

## Beschreibung

Uncontrolled Recursion vulnerability in Apache Commons.

When processing an untrusted configuration file, Commons Configuration will throw a StackOverflowError for YAML input with cycles.
This issue affects Apache Commons: from 2.2 before 2.15.0.

Users are recommended to upgrade to version 2.15.0, which fixes the issue.

## CVSS-Vektor

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

| 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 | Gering | warn |

## Patch verfügbar (OSV)

- 26d8bc8c397296983800da80ef1277dbdb5700e4 (Commit)

## Referenzen

- <https://github.com/apache/commons-configuration/pull/634>
- <https://lists.apache.org/thread/q3q3j10ohcqhs6o0rg1v7kz6kk27vtkk>
- <http://www.openwall.com/lists/oss-security/2026/05/14/5>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45205) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_