CVE-2026-6608— lm-sys fastchat Arena Side-by-Side View add_text control flow
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-6608
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
lm-sys fastchat Arena Side-by-Side View add_text control flow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability was detected in lm-sys fastchat up to 0.2.36. Impacted is the function add_text of the component Arena Side-by-Side View Handler. The manipulation results in incorrect control flow. The attack can be launched remotely. The exploit is now public and may be used. The root cause was fixed in commit 34eca62 for gradio_block_arena_named.py, but three other files were missed.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
控制流实现总是不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
FastChat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FastChat是LMSYS开源的一个用于训练、部署和评估基于大型语言模型的聊天机器人的开放平台。 FastChat 0.2.36及之前版本存在安全漏洞，该漏洞源于对组件Arena Side-by-Side View Handler中函数add_text的错误操作，可能导致控制流不正确。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-6608
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-6608
请登录查看更多情报信息。
- Submit #792228: LM-Sys FastChat <= 0.2.36 Content Moderation Bypass (CWE-670)third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-6608
IV. Related Vulnerabilities
Same vendor: lm-sys
- CVE-2026-6607
lm-sys fastchat Worker API Endpoint api_generate resource co - CVE-2025-3677
lm-sys fastchat apply_delta.py apply_delta_low_cpu_mem deser - CVE-2024-10912
Denial of Service in lm-sys/fastchat - CVE-2024-12376
Server Side Request Forgery in lm-sys/fastchat - CVE-2024-10907
Denial of Service (DoS) via Multipart Boundary in lm-sys/fas
V. Comments for CVE-2026-6608
No comments yet