CVE-2026-51883

UNKNOWN 0.0

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

Vendor	n/a
Product	n/a
Published	Oct 1, 2026
Last Updated	Oct 1, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/chatchat-space/Langchain-Chatchat/issues/5467 gist.github.com: https://gist.github.com/Ro1ME/30f5139a2920bf7075299a33eb1690f2