Vulnerability Description
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 API. Such manipulation of the argument file.filename leads to time-of-check time-of-use. Access to the local network is required for this attack to succeed. The attack requires a high level of complexity. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-2-Silent-File
- https://github.com/chatchat-space/Langchain-Chatchat/
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5463
- https://vuldb.com/submit/807795
- https://vuldb.com/vuln/361125
- https://vuldb.com/vuln/361125/cti
FAQ
What is CVE-2026-7846?
CVE-2026-7846 is a vulnerability with a CVSS score of 2.6 (LOW). 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 co...
How severe is CVE-2026-7846?
CVE-2026-7846 has been rated LOW with a CVSS base score of 2.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-7846?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.