CVE-2026-51883

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-51883
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-01 22:17:03 UTC
Updated2026-10-02 18:47:49 UTC
DescriptionThe 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.

Risk And Classification

Problem Types: n/a

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
github.com/chatchat-space/Langchain-Chatchat/issues/5467 [email protected] github.com
gist.github.com/Ro1ME/30f5139a2920bf7075299a33eb1690f2 [email protected] gist.github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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