CVE-2026-111618
mediumCoAI (Chat Nio) through 4.0.0 contains an unauthenticated path traversal vulnerability in the generation and article archive download endpoints via the hash qu…
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.
CVSS
5.3
5.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-16 18:17
Modified: 2026-10-23 19:17
NVD status: Deferred
Last synced 1 day ago
Verified against the source API 2026-10-27 07:03 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/coaidev/coai/blob/v4.0.0/addition/article/api.go#L25-L35 disclosure@vulncheck.com
- https://github.com/coaidev/coai/blob/v4.0.0/addition/generation/api.go#L19-L29 disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/coai-chatnio-generation-article-download-path-traversal disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/coai-through-4.0.0-unauthenticated-path-traversal-via... disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/coai-chatnio-generation-article-download-path-traversal 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:03 UTC · record ↗