---
cve: "CVE-2026-59731"
severity: "HIGH"
cvss: 8.2
epss: "27%"
vendor: "withastro"
kev: false
exploited: false
published: "2026-07-08 16:27:18"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T16:17:37+02:00"
---

# CVE-2026-59731

> 8.2 HIGH · 🧪 PoC

## Beschreibung

Astro is a web framework for content-driven websites. Version 6.4.7 performs authorization decisions on a partially decoded pathname after reaching the iterative URL decoder limit, while later rewrite route matching performs an additional decodeURI() operation and can resolve the request to a protected route. This issue is fixed in version 6.4.8.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/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 | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 27c80ea92248993e5fce94b2c26d87d611ab6785 (Commit)
- 3ec2c10b1fd073916a00b60ff74d9d5bb17ad208 (Commit)

## Referenzen

- <https://github.com/withastro/astro/security/advisories/GHSA-vj59-8hwv-xxmv>
- <https://github.com/withastro/astro/pull/17109>
- <https://github.com/withastro/astro/commit/27c80ea92248993e5fce94b2c26d87d611ab6785>
- <https://github.com/withastro/astro/releases/tag/astro@6.4.8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59731) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_