Cross-Site Scripting Vulnerability in Neo4j Enterprise and Community Editions
CVE-2026-1337

1.1LOW

Key Information:

Vendor

Neo4j

Status
Enterprise Edition
Community Edition
Vendor
CVE Published:
6 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1337?

A cross-site scripting (XSS) vulnerability exists in the query log handling of Neo4j Enterprise and Community Editions prior to version 2026.01. Due to insufficient escaping of Unicode characters, users may inadvertently expose themselves to XSS attacks when logs are opened in tools that render them as HTML. While there is no direct security impact on Neo4j products themselves, users are advised to treat the logs as plain text and upgrade to a secure version to avoid potential exploitation risks.

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Affected Version(s)

Community Edition 0 < 2026.01.0

Enterprise Edition 0 < 2026.01.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-1337
Created by JoakimBulow

References

https://github.com/JoakimBulow/CVE-2026-1337
exploit

CVSS V4

Score:
1.1
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Joakim Bülow
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