---
cve: "CVE-2026-56324"
severity: "HIGH"
cvss: 8.8
epss: "47%"
vendor: "Capgo"
kev: false
exploited: false
published: "2026-06-22 22:16:52"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T06:57:32+02:00"
---

# CVE-2026-56324

> 8.8 HIGH · 🧪 PoC

## Beschreibung

Capgo before 12.128.2 contains a rate limit bypass vulnerability in the channel_self endpoint that allows attackers to circumvent rate limiting by rotating the user-controlled device_id parameter. Attackers can send multiple requests per second by changing device_id values to flood the channel_devices table and cause database exhaustion.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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 |

## Patch verfügbar (OSV)

- 6685e5f11adef257bf3d085e481f4d8ebcec602e (Commit)

## Referenzen

- <https://github.com/Cap-go/capgo/security/advisories/GHSA-77p2-9rcr-5w27>
- <https://www.vulncheck.com/advisories/capgo-rate-limit-bypass-via-user-controlled-device-id-parameter>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-56324) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_