---
cve: "CVE-2026-61539"
severity: "CRITICAL"
cvss: 10.0
epss: "1.2%"
vendor: "xorbitsai"
kev: false
exploited: false
published: "2026-08-21 21:17:00"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-10T01:17:06+02:00"
---

# CVE-2026-61539

> 10.0 CRITICAL · 🧪 PoC

## Beschreibung

Xinference is an inference API for running open-source, speech, and multimodal models. In 2.5.0 and earlier, Xinference passes attacker-influenced Llama3 tool-call output to eval() in xinference/model/llm/tool_parsers/llama3_tool_parser.py and xinference/model/llm/utils.py. Requests to /v1/chat/completions with a tools field flow through xinference/api/restful_api.py, xinference/model/llm/transformers/core.py, handle_chat_result_non_streaming(), and _post_process_completion() before extract_tool_calls() or _eval_llama3_chat_arguments() evaluates the model-generated Python expression. An unauthenticated remote attacker can influence that output through a crafted prompt and execute commands in the Xinference server process context. This issue is fixed in version 2.7.0.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **yes**
  - Technical Impact: **total**

## CVSS-Vektor

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

| 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 | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 1b3d220f342ce68d34cec4586d9409d457dadc42 (Commit)
- df4c7cba1e647e0508104f028e8fab16f66e60f1 (Commit)

## Referenzen

- <https://github.com/xorbitsai/inference/security/advisories/GHSA-x2rj-828p-hx9m>
- <https://github.com/xorbitsai/inference/pull/4786>
- <https://github.com/xorbitsai/inference/commit/1b3d220f342ce68d34cec4586d9409d457dadc42>
- <https://github.com/xorbitsai/inference/releases/tag/v2.7.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-61539/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_