CVE-2026-7847

LOW EPSS 14.2%
Published May 5, 20261mo ago · Modified Jun 17, 20261w ago
1.2 CVSS 4.0
Low
Find Similar
Published May 5, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
1.2
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Adjacent
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
14.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-310
CWE-330

References 6

  • github.com https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-3-Predictable-File-ID.md
  • github.com https://github.com/chatchat-space/Langchain-Chatchat/
  • github.com https://github.com/chatchat-space/Langchain-Chatchat/issues/5464
  • vuldb.com https://vuldb.com/submit/807796
  • vuldb.com https://vuldb.com/vuln/361126
  • vuldb.com https://vuldb.com/vuln/361126/cti

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.