CVE Catalog

CVE-2026-39107

MediumCVSS 6.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.27%

19th percentile - higher than 19% of all known CVEs

Summary

In the Kimi AI v1.0 web interface, the 'Preview' feature fails to sanitize or encode HTML/JavaScript payloads generated by the AI model. When a user switches to the 'Preview' tab, the malicious payload is rendered directly into the DOM, leading to arbitrary JavaScript execution in the victim's browser session.

Risk Assessment

An attacker can steal user sessions, redirect users to malicious sites, or perform other actions in the context of their browser, threatening data confidentiality and integrity.

Recommendation

Update Kimi AI to a version that includes a fix for sanitizing AI output, or implement server-side filtering.

Related vulnerabilities

Original NVD description (English source)

A Cross Site Scripting vulnerability exists in the Kimi AI v1.0 web interface's 'Preview' feature. The application fails to properly sanitize or encode HTML/JavaScript payloads generated by the AI model. When a user switches to the 'Preview' tab to view AI-generated code, the malicious payload is rendered directly into the DOM, leading to arbitrary JavaScript execution in the victim's browser session.

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