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Description

A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3. This vulnerability affects the function files/list_files/retrieve_file/retrieve_file_content/delete_file of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Compatible File Service. The manipulation results in missing authentication. The attacker must have access to the local network to execute the attack. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-05-05 | Published 2026-05-05 | Updated 2026-05-06 | Assigner VulDB




MEDIUM: 5.3CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
MEDIUM: 6.3CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
MEDIUM: 6.3CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.8AV:A/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

Problem types

Missing Authentication

Improper Authentication

Product status

0.3.1.0
affected

0.3.1.1
affected

0.3.1.2
affected

0.3.1.3
affected

Timeline

2026-05-05:Advisory disclosed
2026-05-05:VulDB entry created
2026-05-05:VulDB entry last update

Credits

Dem00 (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/361123 (VDB-361123 | chatchat-space Langchain-Chatchat Compatible File Service openai_routes.py delete_file missing authentication) vdb-entry technical-description

vuldb.com/vuln/361123/cti (VDB-361123 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/807790 (Submit #807790 | chatchat-space Langchain-Chatchat 0.3.1.3 Missing Authorization / CWE-862) third-party-advisory

github.com/chatchat-space/Langchain-Chatchat/issues/5465 issue-tracking

github.com/...Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md exploit

github.com/chatchat-space/Langchain-Chatchat/ product

cve.org (CVE-2026-7844)

nvd.nist.gov (CVE-2026-7844)

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