CVE-2026-51883
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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 configured knowledge base root directory.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | n/a | n/a | affected |
Weaknesses
- n/a
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: total
Additional References
References
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5467
- https://gist.github.com/Ro1ME/30f5139a2920bf7075299a33eb1690f2
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