{"id":"CVE-2026-111618","published":"2026-10-16T18:17:41.393","lastModified":"2026-10-16T19:03:18.127","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.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://github.com/coaidev/coai/blob/v4.0.0/addition/article/api.go#L25-L35","tags":[]},{"url":"https://github.com/coaidev/coai/blob/v4.0.0/addition/generation/api.go#L19-L29","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/coai-chatnio-generation-article-download-path-traversal","tags":[]},{"url":"https://www.vulncheck.com/advisories/coai-through-4.0.0-unauthenticated-path-traversal-via-archive-download-endpoints","tags":[]}],"exploitRefs":[{"url":"https://github.com/coaidev/coai/blob/v4.0.0/addition/article/api.go#L25-L35","tags":[]},{"url":"https://github.com/coaidev/coai/blob/v4.0.0/addition/generation/api.go#L19-L29","tags":[]}],"hasPoc":true,"ai":null}