CVE-2026-51882
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Langchain-Chatchat 0.3.0 中与 OpenAI 兼容的文件上传端点 存在路径穿越漏洞。攻击者可通过构造恶意的文件名，将文件写入到 目录之外的任意位置。
Possible ATT&CK Techniques 3 AI
T1105 · Ingress Tool Transfer T1059 · Command and Scripting Interpreter T1059.004 · Unix Shell
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I. Basic Information for CVE-2026-51882
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` directory by crafting malicious filenames.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2026-51882
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-51882 (1)
Exploits & Public PoCs for CVE-2026-51882 (1)
Same Patch Batch · n/a · 2026-10-01 · 21 CVEs total
| CVE-2026-103484 | 8.8 HIGH | pgvector buffer overflow in IVFFlat index build |
| CVE-2026-103531 | 5.5 MEDIUM | OpenSC card-setcos.c setcos_construct_fci_44 stack-based overflow |
| CVE-2026-51876 | DeepTutor 1.4.0授权绕过漏洞 | |
| CVE-2026-51875 | Devika v1.0存在路径遍历漏洞 | |
| CVE-2026-51892 | RagFlow 0.24.0 /v1/document/get/ 接口访问控制错误漏洞 | |
| CVE-2026-51896 | RagFlow 0.25.3恢复模块越权访问漏洞 | |
| CVE-2026-51886 | LangFlow v1.9.3代码注入漏洞 | |
| CVE-2026-51878 | DeepTutor 1.4.0 对象标识符授权绕过漏洞 | |
| CVE-2026-51873 | Devika v1.0目录遍历漏洞 | |
| CVE-2026-51881 | DeepTutor 1.4.0远程代码注入漏洞 | |
| CVE-2026-51879 | DeepTutor 1.4.0 认证绕过漏洞 | |
| CVE-2026-51897 | RAGFlow 0.24.0 get_dataset接口存在命令执行漏洞 | |
| CVE-2026-51884 | Langchain Chatchat 0.3.1临时文档上传路径遍历漏洞 | |
| CVE-2026-51888 | Langflow v1.8.4 目录遍历漏洞 | |
| CVE-2026-51893 | RagFlow 0.24.0 越权访问漏洞 | |
| CVE-2026-51880 | Deeptutor 1.4.0 EditFileTool路径遍历漏洞 | |
| CVE-2026-51895 | Ragflow 0.24.0及之前版本存在更新元数据不当访问控制漏洞 | |
| CVE-2026-51874 | Devika v1.0路径穿越漏洞 | |
| CVE-2026-51894 | RAGFlow 0.24.0 任意文件读取漏洞 | |
| CVE-2026-51883 | Langchain-Chatchat 0.3.x 知识库创建接口路径穿越漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-51882
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