Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Neo4j Enterprise and Community editions, the org.neo4j:neo4j Maven package, are affected before 2026.01 because query log output does not sufficiently escape Unicode characters. An attacker could cause XSS if a user opens the logs in a tool that renders them as HTML, though the source states there is no direct security impact on Neo4j itself. Upgrade to 2026.01 or later; until then, treat the query logs as plain text.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 1.1 | Low | 4.0 | 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 | CNA (Neo4j) |
- CISA KEV Not listed.
- EPSS 0.0024, the 15th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:17 UTC First seen by agentprime
- 31 Oct 2026, 14:17 UTC Confirmed by OSV