CVE-2026-6607— lm-sys fastchat Worker API Endpoint api_generate resource consumption
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-6607
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 Worker API Endpoint api_generate resource consumption
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security vulnerability has been detected in lm-sys fastchat up to 0.2.36. This issue affects the function api_generate of the component Worker API Endpoint. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is c9e84b89c91d45191dc24466888de526fa04cf33. It is suggested to install a patch to address this issue. Commit ff66426 patched this issue in api_generate of base_model_worker.py and did miss other entry points.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
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Worker API Endpoint中函数api_generate的错误操作，可能导致资源消耗。
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-2026-6607
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-6607
请登录查看更多情报信息。
- Submit #792227: LM-Sys FastChat <= 0.2.36 Denial of Service (CWE-400)third-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-6607
IV. Related Vulnerabilities
Same vendor: lm-sys
- CVE-2026-6608
lm-sys fastchat Arena Side-by-Side View add_text control flo - 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
Same weakness: CWE-400
- CVE-2026-8187
Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo - CVE-2026-42212
SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-lau - CVE-2026-32686
Unbounded exponent in decimal enables unauthenticated DoS - CVE-2026-20188
Cisco Crosswork Network Controller and Cisco Network Service
V. Comments for CVE-2026-6607
No comments yet