Insufficient escaping of unicode characters in query log in Neo4j Enterprise and Community editions prior to 2026.01 can lead to XSS if the user opens the logs in a tool that treats them as HTML. There is no security impact on Neo4j products, but this advisory is released as a precaution to treat the logs as plain text if using versions prior to 2026.01.
Proof of concept exploit: https://github.com/JoakimBulow/CVE-2026-1337
{
"nvd_published_at": "2026-02-06T14:16:38Z",
"cwe_ids": [
"CWE-117"
],
"severity": "LOW",
"github_reviewed": true,
"github_reviewed_at": "2026-02-06T19:41:15Z"
}