CVE-2026-7847
LOWchatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values
Title source: cnaDescription
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.
References (6)
Core 6
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-361126 | chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values
https://vuldb.com/vuln/361126
Signature, Permissions Required signature
permissions-required
VDB-361126 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/361126/cti
Issue Tracking issue-tracking
https://github.com/chatchat-space/Langchain-Chatchat/issues/5464
Third Party Advisory third-party-advisory
Submit #807796 | chatchat-space Langchain-Chatchat 0.3.1.3 Use of Insufficiently Random Values / CWE-330
https://vuldb.com/submit/807796
Exploit exploit
https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-3-Predictable-File-ID.md
Product product
https://github.com/chatchat-space/Langchain-Chatchat/
Scores
CVSS v3
2.6
EPSS
0.0002
EPSS Percentile
6.2%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-310
CWE-330
Status
published
Products (5)
chatchat-space/Langchain-Chatchat
0.3.1.0
chatchat-space/Langchain-Chatchat
0.3.1.1
chatchat-space/Langchain-Chatchat
0.3.1.2
chatchat-space/Langchain-Chatchat
0.3.1.3
pypi/langchain-chatchat
0 - 0.3.1.3PyPI
Published
May 05, 2026
Tracked Since
May 05, 2026