---
cve: "CVE-2026-106104"
severity: "HIGH"
cvss: 8.7
epss: "0.3%"
vendor: "quasarframework"
kev: false
exploited: false
published: "2026-10-06 18:16:51"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-24T00:52:20+02:00"
---

# CVE-2026-106104

> 8.7 HIGH · 🧪 PoC

## Beschreibung

Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3, Platform.parseSSR() passed an unbounded User-Agent request header to getMatch() in ui/src/plugins/platform/Platform.js, whose browser-detection expressions combined greedy captures with repeated unbounded scans. Platform belongs to autoInstalledPlugins, so this parsing occurs before routing for every SSR request. A crafted unauthenticated request containing repeated version tokens without a terminating Safari token causes super-linear backtracking and blocks the Node.js event loop, delaying every other SSR request. SPA, PWA, Electron, Cordova, Capacitor, browser-extension, and static-site-generation targets are not affected because they do not parse an attacker-controlled request header through this path. This issue is fixed in version 2.23.3.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-10-09 01:18:50
- CNA-CVSS: **8.7** (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-1333** — Inefficient Regular Expression Complexity
  The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

## Angriffsmuster (CAPEC)

- [CAPEC-492 — Regular Expression Exponential Blowup](https://capec.mitre.org/data/definitions/492.html)

## Patch verfügbar (OSV)

- db082a4407936be7865c7c85dd1862bb213f0c08 (Commit)
- 7a954ddafa756afe95c8f633f48ed68a07209d3d (Commit)

## Referenzen

- <https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4>
- <https://github.com/quasarframework/quasar/commit/7a954ddafa756afe95c8f633f48ed68a07209d3d>
- <https://github.com/quasarframework/quasar/releases/tag/quasar-v2.23.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-106104/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_