{"id":"CVE-2026-111618","revision":"aaead6c9b95a4f12ab15525593da5038","records":[{"revision":"aaead6c9b95a4f12ab15525593da5038","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111618","aliases":[],"title":"CoAI through 4.0.0 Unauthenticated Path Traversal via Archive Download Endpoints","description":"CoAI (Chat Nio) through 4.0.0 contains an unauthenticated path traversal vulnerability in the generation and article archive download endpoints via the hash query parameter. Attackers can supply ../ sequences in hash to download any readable .tar.gz or .zip file, including other users' generated archives.","state":0,"publishedAt":"2026-10-16T17:38:55.985+00:00","modifiedAt":"2026-10-16T17:38:55.985+00:00","affected":[{"ecosystem":"Vendor product","name":"CoAI","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"coaidev\",\n                    \"product\": \"CoAI\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"4.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:github/coaidev/coai\",\n                    \"repo\": \"https://github.com/coaidev/coai\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":6.9,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://hackmd.io/@hieuPenguinnn/coai-chatnio-generation-article-download-path-traversal","https://github.com/coaidev/coai/blob/v4.0.0/addition/generation/api.go#L19-L29","https://github.com/coaidev/coai/blob/v4.0.0/addition/article/api.go#L25-L35","https://www.vulncheck.com/advisories/coai-through-4.0.0-unauthenticated-path-traversal-via-archive-download-endpoints"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111618","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111618","identifiers":["CVE-2026-111618"]},"retained":false,"historicalAffected":[]}],"coverage":[]}