---
cve: "CVE-2026-6823"
severity: "HIGH"
cvss: 8.3
epss: "0.3%"
vendor: "HKUDS"
kev: false
exploited: false
published: "2026-04-21 21:16:48"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-28T14:50:07+02:00"
---

# CVE-2026-6823

> 8.3 HIGH · 🧪 PoC

## Beschreibung

HKUDS OpenHarness prior to PR #147 remediation contains an insecure default configuration vulnerability where remote channels inherit allow_from = ["*"] permitting arbitrary remote senders to pass admission checks. Attackers who can reach the configured channel can bypass access controls and reach host-backed agent runtimes, potentially leading to unauthorized file disclosure and read access through default-enabled read-only tools.

## CISA-Anreicherung (vulnrichment/ADP)

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

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/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)

- 35fb12d5da3564943d8d9f3f6ef151b4b61597cd (Commit)
- fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d (Commit)

## Referenzen

- <https://github.com/HKUDS/OpenHarness/pull/147>
- <https://github.com/HKUDS/OpenHarness/commit/fab40c6eabfb15f2bdf23cddd3cfe66a64ea203d>
- <https://github.com/HKUDS/OpenHarness/releases/tag/v0.1.7>
- <https://www.vulncheck.com/advisories/hkuds-openharness-insecure-default-remote-channel-allowlist>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-6823) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_