CVE-2026-1337
MEDIUMNeo4j < 2026.01 - XSS
Title source: ruleDescription
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
Exploits (2)
github
WORKING POC
10 stars
by XiaomingX · pythonpoc
https://github.com/XiaomingX/data-cve-poc-py-v1/tree/main/2026/CVE-2026-1337
Scores
CVSS v3
5.4
EPSS
0.0001
EPSS Percentile
0.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Classification
CWE
CWE-117
Status
published
Affected Products (3)
org.neo4j/neo4j
< 2026.01Maven
neo4j/neo4j
< 2026.01
neo4j/neo4j
< 2026.01
Timeline
Published
Feb 06, 2026
Tracked Since
Feb 18, 2026