---
cve: "CVE-2026-22860"
severity: "HIGH"
cvss: 7.5
epss: "0.7%"
vendor: "rack"
kev: false
exploited: false
published: "2026-02-18 18:45:02"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T14:48:07+02:00"
---

# CVE-2026-22860

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5, `Rack::Directory`’s path check used a string prefix match on the expanded path. A request like `/../root_example/` can escape the configured root if the target path starts with the root string, allowing directory listing outside the intended root. Versions 2.2.22, 3.1.20, and 3.2.5 fix the issue.

## CVSS-Vektor

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

| 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 | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 0cc2e00b22dffc33955ef912569f01e515a406e1 (Commit)
- 65044344e4780d80b409f9ba27df41b6307b5ff5 (Commit)

## Referenzen

- <https://github.com/rack/rack/security/advisories/GHSA-mxw3-3hh2-x2mh>
- <https://github.com/rack/rack/commit/75c5745c286637a8f049a33790c71237762069e7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-22860) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_