5.4mediumMedium
CVE-2026-1337
Neo4j 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
Exploitation status
- Published references include exploit or proof-of-concept material. There is no confirmation it is being used in real attacks.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, an ordinary user account is needed.
- Beyond that, someone has to be persuaded to take an action first.
Scoring
- CVSS
- 5.4 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N- CVSS v4
- 1.1
- Weakness
- CWE-117
- Assigned by
- 3b236295-4ccd-4a1f-a1c1-a72eecc8d7b6
Dates
- Published
- 2026-02-06
- Last modified
- 2026-08-28
- Sources
- NVD
Affected products
- Neo4j Neo4j- 2026.01.0
As listed in the NVD configuration data. Not a statement about your estate.