CVE-2025-9141: vLLM RCE Vulnerability in Qwen3-Coder Tool Parser
vLLM, Qwen3-Coder
An unsafe deserialization flaw involving Python eval() in vLLM allows remote code execution through model tool calls. A patch has been released to address the issue.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 8.8
- fix status
- Fix status unknown
- first report
- 21 Aug 2025
- last update
- 21 Aug 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-08-21CVE-2025-9141: vLLM has remote code execution vulnerability in the tool call parser for Qwen3-CoderGitHub Advisory Database · github.com/advisories/GHSA-79j6-g2m3-jgfw
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling, Open-weight model
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- tags
- rce
- dates
- happened 21 Aug 2025 · first reported 21 Aug 2025
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 07:00Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
Copy a brief
This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# CVE-2025-9141: vLLM RCE Vulnerability in Qwen3-Coder Tool Parser https://gcdradar.vercel.app/incidents/cve-2025-9141-vllm-rce-vulnerability-in-qwen3-coder-tool-par · AIR-2025-0326 · closed 2025-08-21 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-08-21 - AI role: Attack on AI - Products: vLLM, Qwen3-Coder - CVE ids: CVE-2025-9141 - CVSS: 8.8 ## Summary An unsafe deserialization flaw involving Python eval() in vLLM allows remote code execution through model tool calls. A patch has been released to address the issue. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-08-21: CVE-2025-9141: vLLM has remote code execution vulnerability in the tool call parser for Qwen3-Coder (https://github.com/advisories/GHSA-79j6-g2m3-jgfw) ## Sources - 2025-08-21 GitHub Advisory Database: CVE-2025-9141: vLLM has remote code execution vulnerability in the tool call parser for Qwen3-Coder https://github.com/advisories/GHSA-79j6-g2m3-jgfw Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
Related
- closed7.5vLLM CVE-2026-41523: vLLM Security Check Bypass via assert Statement
Patch now · Disclosed · since 16 Jun 2026 · updated 22 Jun 2026 · CVE-2026-41523
AI - closed7.5vLLM CVE-2025-48956: vLLM API Denial of Service via Large HTTP Headers
Patch now · Disclosed · since 21 Aug 2025 · CVE-2025-48956
AI - closed9.8vLLM CVE-2026-22778: vLLM remote code execution via video processing
Patch now · Disclosed · since 2 Feb 2026 · CVE-2026-22778
AI - closed7.1vLLM CVE-2026-24779: vLLM MediaConnector vulnerable to Server-Side Request Forgery
Patch now · Disclosed · since 28 Jan 2026 · updated 28 Jan 2026 · CVE-2026-24779
AI - closed8.8vLLM CVE-2026-22807: vLLM RCE via auto_map Dynamic Module Loading
Patch now · Disclosed · since 21 Jan 2026 · CVE-2026-22807
AI - closed6.5vLLM CVE-2026-22773: vLLM Denial of Service via Idefics3 Vision Model Payload
Patch now · Disclosed · since 13 Jan 2026 · updated 13 Jan 2026 · CVE-2026-22773
AI