PYSEC-2026-2557
Langchain-Chatchat Uses Insufficiently Random Values
Details
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.
Are you affected?
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Affected packages
0No fixed version published yet for langchain-chatchat (pip). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-7847[ADVISORY]
- https://github.com/chatchat-space/Langchain-Chatchat/issues/5464[WEB]
- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-3-Predictable-File-ID.md[WEB]
- https://github.com/chatchat-space/Langchain-Chatchat[PACKAGE]
- https://vuldb.com/submit/807796[WEB]
- https://vuldb.com/vuln/361126[WEB]
- https://vuldb.com/vuln/361126/cti[WEB]
- https://pypi.org/project/langchain-chatchat[PACKAGE]
- https://github.com/advisories/GHSA-jv4p-mhmp-69vw[ADVISORY]