Record summary

CVE-2026-7847 has a selected CVSS score of 2.1 (low).

Description

A vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationPoC
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated May 5, 2026 · Source: CVE List

Affected products and versions

2
ProductSourceVersion rangeStatus
CVE List0.3.1.0affected
0.3.1.1affected
0.3.1.2affected
0.3.1.3affected
GitHub AdvisoryThrough 0.3.1.3affected

References

7
VDB-361126 | chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random valuesvdb entryTechnical description
https://vuldb.com/vuln/361126