CVE Catalog

CVE-2026-111618

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.35%

28th percentile - higher than 28% of all known CVEs

Summary

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.

Risk Assessment

Unauthorized access to other users' archive files — leakage of confidential data. Can lead to privacy violations and exposure of business information.

Recommendation

Upgrade CoAI (Chat Nio) beyond 4.0.0 once available and implement hash parameter validation and path access restrictions. Until a fix is released, consider restricting access to archive download endpoints.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS