{"id":"CVE-2026-7844","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-7844","generatedAt":"2026-10-28T04:44:42.334Z","title":"A vulnerability was detected in chatchat-space Langchain-Chatchat up to 0.3.1.3.","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":"2026-05-05T16:16:19.000Z","lastModified":"2026-07-24T20:10:00.000Z","status":"Deferred","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":2.1,"severity":"LOW","vector":"CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-287","CWE-306"],"affected":[],"epss":{"score":0.00322,"percentile":0.25088,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-4-Missing-Auth-File-Endpoints.md","source":"cna@vuldb.com"},{"url":"https://github.com/chatchat-space/Langchain-Chatchat/","source":"cna@vuldb.com"},{"url":"https://github.com/chatchat-space/Langchain-Chatchat/issues/5465","source":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/807790","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/361123","source":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/361123/cti","source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-7844","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}