LowVulnerability
CVE-2026-7847: Langchain-Chatchat insufficiently random file ID generation
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2026-7847
- Published
- Record updated
- Affected
- langchain-chatchat <= 0.3.1.3
- Fixed in
- No fixed version was stated when the source was last read.
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.2%
Summary
CVE-2026-7847 affects chatchat-space Langchain-Chatchat up to 0.3.1.3. The function _get_file_id in libs/chatchat-server/chatchat/server/api_server/openai_routes.py, part of the Uploaded File Handler component, produces insufficiently random values. Exploitation requires access to the local network, has high attack complexity and is described as difficult; a public exploit exists. The project was informed early through an issue report but has not responded.
Mitigation
The source does not state a fix yet. Check the original advisory for updates.
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