EUVD-2026-91121

The /knowledgebase/uploadtempdocs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory...

CVE-2026-51884

The /knowledgebase/uploadtempdocs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory...

CVE-2026-51884: Improper Limitation of a Pathname to a Restricted Directory

The /knowledgebase/uploadtempdocs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory...

CVE-2026-51884

The /knowledgebase/uploadtempdocs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory...

CVE-2026-51884

The /knowledgebase/uploadtempdocs temporary document upload endpoint in Langchain Chatchat 0.3.1 is vulnerable to path traversal. By crafting malicious filenames, an attacker can write files to arbitrary locations on the server, bypassing the intended restrictions on the temporary directory...

CVE-2026-51884

The Langchain Chatchat 0.3.1 software contains a path traversal vulnerability in the /knowledge_base/upload_temp_docs temporary document upload endpoint. An attacker can exploit this by crafting malicious filenames to write files to arbitrary locations on the server, effectively bypassing intende...

CVE-2025-6853

CVE-2025-6853 affects the Langchain-Chatchat backend component in the project "chatchat-space" up to version 0.3.1. The vulnerability is in the function upload_temp_docs under /knowledge_base/upload_temp_docs, where manipulating the flag argument enables a path traversal. The issue can be exploit...

CVE-2025-6853

A vulnerability classified as critical has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This affects the function uploadtempdocs of the file /knowledgebase/uploadtempdocs of the component Backend. The manipulation of the argument flag leads to path traversal. It is possible to...

CVE-2025-6853 chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversal

A vulnerability classified as critical has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This affects the function uploadtempdocs of the file /knowledgebase/uploadtempdocs of the component Backend. The manipulation of the argument flag leads to path traversal. It is possible to...

CVE-2025-6853 chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversal

A vulnerability classified as critical has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This affects the function uploadtempdocs of the file /knowledgebase/uploadtempdocs of the component Backend. The manipulation of the argument flag leads to path traversal. It is possible to...

CVE-2025-6853: Improper Limitation of a Pathname to a Restricted Directory

A vulnerability classified as critical has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This affects the function uploadtempdocs of the file /knowledgebase/uploadtempdocs of the component Backend. The manipulation of the argument flag leads to path traversal. It is possible to...