---
cve: "CVE-2026-45062"
severity: "HIGH"
cvss: 8.1
epss: "57%"
vendor: "PHP"
kev: false
exploited: false
published: "2026-06-10 18:16:57"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-05T17:53:28+02:00"
---

# CVE-2026-45062

> 8.1 HIGH · 🧪 PoC

## Beschreibung

FrankenPHP is a modern application server for PHP. From version 1.11.2 to before version 1.12.3, the splitPos() function in cgi.go misuses golang.org/x/text/search with search.IgnoreCase when the request path contains a non-ASCII byte. Two distinct flaws in that fallback let an attacker mislead FrankenPHP into treating a non-.php file as a .php script. In any deployment where the attacker can place content into a file served by FrankenPHP (uploads, file storage, etc.), this can be escalated to remote code execution by crafting a URL whose path triggers either flaw. This issue has been patched in version 1.12.3.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 86fb32e829cbb414df74e1f1c23855915d399ac5 (Commit)

## Referenzen

- <https://github.com/php/frankenphp/security/advisories/GHSA-3g8v-8r37-cgjm>
- <https://github.com/php/frankenphp/releases/tag/v1.12.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45062) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_