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TI-2026-06905 Aliases CVE-2026-7847GHSA-jv4p-mhmp-69vw

chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values

Priority MEDIUM 44CWE-310Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00235 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
chatchat-spaceLangchain-Chatchat0.3.1.0; 0.3.1.1; 0.3.1.2; 0.3.1.3—No fix listedCNA
—langchain-chatchat (PyPI)up to 0.3.1.3—No fix listedGHSA-jv4p-mhmp-69vw
  • Langchain-Chatchat Vendorchatchat-space Affected 0.3.1.0; 0.3.1.1; 0.3.1.2; 0.3.1.3 Fixed in — No fix listed CNA
  • langchain-chatchat (PyPI) Vendor— Affected up to 0.3.1.3 Fixed in — No fix listed GHSA-jv4p-mhmp-69vw

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:*——chatchat-space
  • cpe:2.3:a:chatchat-space:langchain-chatchat:*:*:*:*:*:*:*:* Versions — — ·chatchat-space

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-7847
  2. 2026-10-03 Alias added: GHSA-jv4p-mhmp-69vw

References

Exploit 1

Advisory 1

Other 3

  • TI-2026-76659 Missing authentication in Langchain-Chatchat lets attackers run commands CVSS 4.0CRITICAL 9.3
  • TI-2026-06902 chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication CVSS 4.0MEDIUM 5.3
  • TI-2025-06227 chatchat-space Langchain-Chatchat files path traversal CVSS 4.0MEDIUM 5.3
  • TI-2025-06226 chatchat-space Langchain-Chatchat Backend upload_temp_docs path traversal CVSS 4.0MEDIUM 5.3
  • TI-2025-06228 chatchat-space Langchain-Chatchat file path traversal CVSS 4.0MEDIUM 5.1
  • TI-2026-06904 chatchat-space Langchain-Chatchat OpenAI-Compatible File Upload API openai_routes.py files toctou CVSS 4.0LOW 2.1
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences