---
cve: "CVE-2024-23324"
severity: "HIGH"
cvss: 8.6
epss: "0.6%"
vendor: "envoyproxy"
kev: false
exploited: false
published: "2024-02-09 22:48:26"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-23T12:32:08+02:00"
---

# CVE-2024-23324

> 8.6 HIGH · 🧪 PoC

## Beschreibung

Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- a0e580408ef4568b0a16c6663b6d8ae0c46aba6a (Commit)
- 0fd81ee7ffcd7cfc864094b24dc9b5c3ade89ff2 (Commit)

## Referenzen

- <https://github.com/envoyproxy/envoy/security/advisories/GHSA-gq3v-vvhj-96j6>
- <https://github.com/envoyproxy/envoy/commit/29989f6cc8bfd8cd2ffcb7c42711eb02c7a5168a>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2024-23324) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_