CVE detail
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 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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 19.5 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
6 source links · newest first
- https://vuldb.com/vuln/361125/ctivuldb.com
No excerpt available.
Exploitvuldb.comMay 5, 2026, 4:16 PM - https://vuldb.com/vuln/361125vuldb.com
No excerpt available.
Exploitvuldb.comMay 5, 2026, 4:16 PM - https://vuldb.com/submit/807795vuldb.com
No excerpt available.
Exploitvuldb.comMay 5, 2026, 4:16 PM No excerpt available.
Exploitgithub.comMay 5, 2026, 4:16 PMNo excerpt available.
Exploitgithub.comMay 5, 2026, 4:16 PM- https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-2-Silent-File-Overwrite.mdgithub.com
No excerpt available.
Exploitgithub.comMay 5, 2026, 4:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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