EUVD-2026-91122

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as ..\ into the knowledgebasename parameter to write knowledge base content to arbitrary locations outside the...

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...

EUVD-2026-91123

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 openaifiles directory by crafting malicious filenames...

CVE-2026-51883

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as ..\ into the knowledgebasename parameter to write knowledge base content to arbitrary locations outside the...

CVE-2026-51882

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 openaifiles directory by crafting malicious filenames...

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...

PT-2026-104042

The /knowledge base/upload temp docs 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...

PT-2026-104041

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as .. into the knowledge base name parameter to write knowledge base content to arbitrary locations outside the...

PT-2026-104040

Name of the Vulnerable Software and Affected Versions Langchain-Chatchat version 0.3.0 Description The OpenAI-compatible file upload endpoint /v1/files is susceptible to path traversal, a condition where an attacker can access or write files outside the intended directory. By crafting malicious...

CVE-2026-51882: Undefined Security Weakness

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 openaifiles directory by crafting malicious filenames...

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-2026-51882

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 openaifiles directory by crafting malicious filenames...

CVE-2026-51883

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as ..\ into the knowledgebasename parameter to write knowledge base content to arbitrary locations outside the...

CVE-2026-51883: Undefined Security Weakness

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as ..\ into the knowledgebasename parameter to write knowledge base content to arbitrary locations outside the...

CVE-2026-51883

The knowledge base creation and document upload interfaces in Langchain-Chatchat versions 0.3.0 and 0.3.1 are vulnerable to a path traversal vulnerability (CWE-22 ). An attacker can inject path traversal sequences, such as ..\, into the knowledge_base_name parameter. This allows the attacker to b...

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-2026-51883

The knowledge base creation and document upload interfaces in Langchain-Chatchat 0.3.0;0.3.1 is vulnerable to path traversal. An attacker can inject path traversal sequences such as ..\ into the knowledgebasename parameter to write knowledge base content to arbitrary locations outside the...

CVE-2026-51882

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 openaifiles directory by crafting malicious filenames...

CVE-2026-51882

The Langchain-Chatchat version 0.3.0 contains a path traversal vulnerability in its OpenAI-compatible file upload endpoint, /v1/files. An attacker can craft malicious filenames to write files to arbitrary locations outside the intended openai_files directory. This vulnerability has been exploited...

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...