Advisory details:
pypa / vllm/PYSEC-2026-2014
| Advisory ID | pypa/vllm/PYSEC-2026-2014 |
| Aliases |
CVE-2025-9141
GHSA-79j6-g2m3-jgfw PYSEC-2026-2014 |
| Summary | vLLM has remote code execution vulnerability in the tool call parser for Qwen3-Coder ### Summary An unsafe deserialization vulnerability allows any authenticated user to execute arbitrary code on the server if they are able to get the model to pass the code as an argument to a tool call. ### Details vLLM's [Qwen3 Coder tool parser](https://github.com/vllm-project/vllm/blob/main/vllm/entrypoints/openai/tool_parsers/qwen3coder_tool_parser.py) contains a code execution path that uses Python's `eval()` function to parse tool call parameters. This occurs during the parameter conversion process when the parser attempts to handle unknown data types. This code path is reached when: 1. Tool calling is enabled (`--enable-auto-tool-choice`) 2. The qwen3_coder parser is specified (`--tool-call-parser qwen3_coder`) 3. The parameter type is not explicitly defined or recognized ### Impact Remote Code Execution via Python's `eval()` function. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.9 |
| Risk | 4.0 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| There are no known CWE. |
| System | Score | Found at |
|---|---|---|
| cvssv3.1 | 8.8 | https://github.com/pypa/advisory-database/blob/main/vulns/vllm/PYSEC-2026-2014.yaml |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/vllm-project/vllm | ||
| https://github.com/vllm-project/vllm/commit/4594fc3b281713bd3d7634405b4a1393af40d294 | ||
| https://github.com/vllm-project/vllm/pull/21396 | ||
| https://pypi.org/project/vllm | ||
| CVE-2025-9141 | https://nvd.nist.gov/vuln/detail/CVE-2025-9141 | |
| GHSA-79j6-g2m3-jgfw | https://github.com/advisories/GHSA-79j6-g2m3-jgfw | |
| GHSA-79j6-g2m3-jgfw | https://github.com/vllm-project/vllm/security/advisories/GHSA-79j6-g2m3-jgfw |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
There are no SSVC decisions available.