Description
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.
Published: 2026-10-01
Score: n/a
EPSS: n/a
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 01 Oct 2026 21:45:00 +0000

Type Values Removed Values Added
Description 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.
References

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-10-01T21:35:55.173Z

Reserved: 2026-06-08T00:00:00.000Z

Link: CVE-2026-51883

cve-icon Vulnrichment

No data.

cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.