CVE-2026-1337
Insufficient escaping of unicode characters in query log
Description
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
INFO
Published Date :
Feb. 6, 2026, 2:16 p.m.
Last Modified :
Feb. 24, 2026, 9:21 p.m.
Remotely Exploit :
Yes !
Source :
3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6 | ||||
| CVSS 4.0 | LOW | 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6 |
Solution
- Update Neo4j to version 2026.01 or later.
- Treat logs as plain text if using older versions.
Public PoC/Exploit Available at Github
CVE-2026-1337 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-1337.
| URL | Resource |
|---|---|
| https://github.com/JoakimBulow/CVE-2026-1337 | ExploitThird Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-1337 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-1337
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Mirror of https://github.com/nomi-sec/PoC-in-GitHub
CVE-2026-1337 - Neo4j - Log Injection
Python
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-1337 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-1337 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:neo4j:neo4j:*:*:*:*:community:*:*:* versions up to (excluding) 2026.01 *cpe:2.3:a:neo4j:neo4j:*:*:*:*:enterprise:*:*:* versions up to (excluding) 2026.01 Added Reference Type Neo4j: https://github.com/JoakimBulow/CVE-2026-1337 Types: Exploit, Third Party Advisory -
New CVE Received by 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6
Feb. 06, 2026
Action Type Old Value New Value Added Description 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 Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-117 Added Reference https://github.com/JoakimBulow/CVE-2026-1337