CVE-2026-111618CoAI through 4.0.0 Unauthenticated Path Traversal via Archive Download Endpoints
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No exploitation reported and no EPSS estimate yet.
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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 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 16, 2026
Affected products
coaidev CoAI coaidev:coai (from the name) | through 4.0.0 | CNA record |
References
- https://hackmd.io/@hieuPenguinnn/coai-chatnio-generation-article-download-path-traversalthird-party-advisory
- https://github.com/coaidev/coai/blob/v4.0.0/addition/generation/api.go#L19-L29technical-description
- https://github.com/coaidev/coai/blob/v4.0.0/addition/article/api.go#L25-L35technical-description
- https://www.vulncheck.com/advisories/coai-through-4.0.0-unauthenticated-path-traversal-via-archive-download-endpointsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.