Neo4j
CVE-2026-1337
LOW
GHSA-xr72-g735-4vwp
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A09:2025 - Security Logging & Alerting Failures
ASVS 5.0
V16 - Security Logging and Error Handling Log output neutralization
|
| Impact | CVSS 5.4 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to XSS if the user opens the logs in a tool that treats them as HTML. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Neo4J versions up to 2026.01 contains a vulnerability that allows attackers to XSS if the user opens the logs in a tool that treats them as HTML (CVSS 5.4).
RemediationAI
Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in maven
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
affects Neo4J. 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
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P
Primary rating from Vendor (3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6) · only source for this CVE.
CVSS VectorVendor: 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6
Lifecycle Timeline
5DescriptionCVE.org
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
Executive ViewAI
Organizations using query log in Neo4j Enterprise and Community editions should be aware of moderate risk from CVE-2026-1337 rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
neo4j-contrib neo4j-apoc-procedures version before commit 45bc09c contains a XML External Entity (XXE) vulnerability in
Neo4j through 3.4.18 (with the shell server enabled) exposes an RMI service that arbitrarily deserializes Java objects,
Due to incorrect access control in Neo4j Enterprise Database Server 3.4.x before 3.4.9, the setting of LDAP for authenti
APOC (Awesome Procedures on Cypher) is an add-on library for Neo4j. Rated high severity (CVSS 8.1), this vulnerability i
Neo4j APOC (Awesome Procedures on Cypher) before 4.3.0.7 and 4.x before 4.4.0.8 allows Directory Traversal to sibling di
Schema-level and Query/Mutation type-level @authentication directives are silently ignored for top-level @cypher fields
A failure in resetting the security context in some transaction actions in Neo4j Graph Database 4.2 and 4.3 could allow
Authorization bypass in @neo4j/graphql 7.0.0 through 7.6.3 lets an authenticated user read, create, and delete records t
JWT authentication bypass in @neo4j/graphql allows unauthenticated remote clients to forge arbitrary JWT claims over Gra
Authentication bypass in @neo4j/graphql exposes admin-restricted custom-resolver fields to any authenticated user holdin
Multiple cross-site request forgery (CSRF) vulnerabilities in Neo4J 1.9.2 allow remote attackers to hijack the authentic
The Cypher component in Neo4j 5.0.0 through 5.18 mishandles IMMUTABLE privileges in some situations where an attacker al
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