---
cve: "CVE-2026-22688"
severity: "CRITICAL"
cvss: 10.0
epss: "1.9%"
vendor: "Tencent"
kev: false
exploited: false
published: "2026-01-10 04:16:01"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T13:51:48+01:00"
---

# CVE-2026-22688

> 10.0 CRITICAL · 🧪 PoC

## Beschreibung

WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.2.5, there is a command injection vulnerability that allows authenticated users to inject stdio_config.command/args into MCP stdio settings, causing the server to execute subprocesses using these injected values. This issue has been patched in version 0.2.5.

## CNA-Record (Kanon, cvelistV5)

- CNA: **GitHub_M**
- State: PUBLISHED
- Stand: 2026-01-12 17:20:43
- CNA-CVSS: **10.0** (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

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

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

## Schwachstellen-Klasse

- **CWE-77** — Improper Neutralization of Special Elements used in a Command (Command Injection)
  The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

## Angriffsmuster (CAPEC)

- [CAPEC-15 — Command Delimiters](https://capec.mitre.org/data/definitions/15.html) _(Severity: High)_
- [CAPEC-40 — Manipulating Writeable Terminal Devices](https://capec.mitre.org/data/definitions/40.html) _(Severity: Very High)_
- [CAPEC-43 — Exploiting Multiple Input Interpretation Layers](https://capec.mitre.org/data/definitions/43.html) _(Severity: High)_
- [CAPEC-75 — Manipulating Writeable Configuration Files](https://capec.mitre.org/data/definitions/75.html) _(Severity: Very High)_
- [CAPEC-76 — Manipulating Web Input to File System Calls](https://capec.mitre.org/data/definitions/76.html) _(Severity: Very High)_
- [CAPEC-136 — LDAP Injection](https://capec.mitre.org/data/definitions/136.html) _(Severity: High)_
- [CAPEC-183 — IMAP/SMTP Command Injection](https://capec.mitre.org/data/definitions/183.html) _(Severity: Medium)_
- [CAPEC-248 — Command Injection](https://capec.mitre.org/data/definitions/248.html) _(Severity: High)_

## Patch verfügbar (OSV)

- 2784207de6f6203e6fe54680536b92a908c26c7c (Commit)
- f7900a5e9a18c99d25cec9589ead9e4e59ce04bb (Commit)

## Referenzen

- <https://github.com/Tencent/WeKnora/security/advisories/GHSA-78h3-63c4-5fqc>
- <https://github.com/Tencent/WeKnora/commit/f7900a5e9a18c99d25cec9589ead9e4e59ce04bb>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-22688/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_