Unrated severityNVD Advisory· Published Oct 1, 2026
CVE-2026-51884
CVE-2026-51884
Description
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.
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Affected products
2- Range: =0.3.1
- Range: =0.3.1
Patches
Vulnerability mechanics
References
2News mentions
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