---
cve: "CVE-2026-26210"
severity: "CRITICAL"
cvss: 9.3
epss: "1%"
vendor: "kvcache-ai"
kev: false
exploited: false
published: "2026-04-23 22:16:26"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-03T09:30:56+02:00"
---

# CVE-2026-26210

> 9.3 CRITICAL · 🧪 PoC

## Beschreibung

KTransformers through 0.5.3 contains an unsafe deserialization vulnerability in the balance_serve backend mode where the scheduler RPC server binds a ZMQ ROUTER socket to all interfaces with no authentication and deserializes incoming messages using pickle.loads() without validation. Attackers can send a crafted pickle payload to the exposed ZMQ socket to execute arbitrary code on the server with the privileges of the ktransformers process.

## 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:H/VI:H/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 |

## Referenzen

- <https://chocapikk.com/posts/2026/ktransformers-pickle-rce/>
- <https://github.com/kvcache-ai/ktransformers/pull/1944>
- <https://www.vulncheck.com/advisories/ktransformers-unsafe-deserialization-rce-via-balance-serve>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-26210) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_