Skip to main content
Public proof of conceptFix available

CVE-2026-1337

A public proof of concept exists; no exploitation attested.

  • Published2026-02-06
  • Fixed in2026.01.0
  • WeaknessCWE-117

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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

Timeline

dates in UTC
  1. 2026-02-0614:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-04 09:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-1337?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-1337?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Neo4j
BranchAffectedFixed in
2026.1< 2026.01.02026.01.0
neo4j
BranchAffectedFixed in
2026.1< 2026.1.02026.1.0
neo4j
BranchAffectedFixed in
2026.1< 2026.012026.01

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA2 products

As Neo4j, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • neo4j Enterprise Editionother versions: not affected
    Affected
    • < 2026.01.0fixed in 2026.01.0date
  • neo4j Community Editionother versions: not affected

    package pkg:maven/org.neo4j/neo4jhttps://mvnrepository.com/artifact/org.neo4j/neo4j

    Affected
    • < 2026.01.0fixed in 2026.01.0date

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-02-06

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • neo4j-2025.10Wolfiall versions · no fixed version listedand 1 other package
  • neo4j-2026.01MinimOSall versions · fixed in 0and 1 other package
  • neo4j-4.4MinimOSall versions · no fixed version listedand 15 other packages
  • neo4j-5.26Chainguardall versions · no fixed version listedand 5 other packages

Full record on NVD

Fix

  1. Update Neo4j to 2026.01.0

Detection

read 2026-11-03 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
3 repositories, unverifiedJoakimBulow/CVE-2026-1337George0Papasotiriou/CVE-2026-1337-AI-Coding-Assistant-Prompt-Injection-to-Sandbox-Escapeprimatelab/bash2shell
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 4.0 vector
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/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
Published
2026-02-06
Last Modified
2026-08-28
NVD status
Analyzed
GitHub Advisory
GHSA-xr72-g735-4vwp

Frequently asked questions

What is CVE-2026-1337?

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

Is CVE-2026-1337 actively exploited?

A proof-of-concept exploit exists for CVE-2026-1337, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-1337?

CVE-2026-1337 has a CVSS v3 base score of 5.4 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Running neo4j? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record