Vulnerability in Chatchat-space Langchain-chatchat
CVE-2026-7846
A vulnerability has been found in chatchat-space Langchain-Chatchat up to 0.3.1.3. Impacted is the function files of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component OpenAI-Compatible File Upload A…
Vulnerability class: Race Condition
EPSS: 0.000 (8.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N.
Affected products
- Chatchat-space Langchain-chatchat — versions 0.3.1.0, 0.3.1.1, 0.3.1.2
Weakness classification (CWE)
References
- cna@vuldb.com (exploit)
- cna@vuldb.com (product)
- cna@vuldb.com (issue-tracking)
- Submit #807795 | chatchat-space Langchain-Chatchat 0.3.1.3 TOCTOU Race Condition / CWE-367 (third-party-advisory)
- VDB-361125 | chatchat-space Langchain-Chatchat OpenAI-Compatible File Upload API openai_routes.py files toctou (technical-description, vdb-entry)
- VDB-361125 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-7846?
- CVE-2026-7846 is a low-severity vulnerability in Chatchat-space Langchain-chatchat, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 2.6/10. Published 2026-05-05.
- How severe is CVE-2026-7846?
- Low severity. CVSS v3 base score is 2.6 out of 10.