CVE-2026-61539

Critical

Description

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.

SeverityCritical
CVSS10.0
Exploit probability—
ProductXinference
PublishedAug 21, 2026
First seenAug 21, 2026
Weakness typeCWE-95CWE-95

How to fix

Update
  • xinference2.7.0 or later

Affected products

ProductAffected versionsFixed in
xinferencePyPIv < 2.7.02.7.0

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CVE-2026-61539 · Xinference · Dark Radar