CVE-2025-6855mediumCWE-22

CVE-2025-6855: medium-severity vulnerability in chatchat-space Langchain-Chatchat

chatchat-space Langchain-Chatchat file path traversal

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.1epss 0.6%
A vulnerability, which was classified as critical, has been found in chatchat-space Langchain-Chatchat up to 0.3.1. This issue affects some unknown processing of the file /v1/file. The manipulation of the argument flag leads to path traversal. The exploit has been disclosed to the public and may be used.
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
chatchat-space · Langchain-Chatchat
Related CVEs — chatchat-space Langchain-Chatchat

In the same product, most dangerous first.

CVE-2026-75128CRITICALLangchain-Chatchat through 0.3.1.3 Unauthenticated RCE via /tools/call EndpointEPSS 2.2%CVE-2025-6853MEDIUMchatchat-space Langchain-Chatchat Backend upload_temp_docs path traversalEPSS 0.6%CVE-2025-6854MEDIUMchatchat-space Langchain-Chatchat files path traversalEPSS 0.6%CVE-2026-7844MEDIUMchatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authenticationEPSS 0.3%CVE-2026-7847LOWchatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random valuesEPSS 0.2%CVE-2026-7846LOWchatchat-space Langchain-Chatchat OpenAI-Compatible File Upload API openai_routes.py files toctouEPSS 0.2%