CVE-2026-7846
LOW2.6EPSS 0.03%Langchain-Chatchat has a Race Condition in its OpenAI-Compatible File Upload API
發布日:2026/5/5修改日:2026/5/8
描述
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.
受影響套件(1)
- PyPI/langchain-chatchatfrom 0, <= 0.3.1.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P |
| osv | CVSS 3.1 | LOW2.6 | CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N |
參考連結(7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2026-7846
- PATCHhttps://github.com/chatchat-space/Langchain-Chatchat
- WEBhttps://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-2-Silent-File-Overwrite.md
- WEBhttps://github.com/chatchat-space/Langchain-Chatchat/issues/5463
- WEBhttps://vuldb.com/submit/807795
- WEBhttps://vuldb.com/vuln/361125
- WEBhttps://vuldb.com/vuln/361125/cti