CVE-2018-1309

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-23 · updated 2026-06-17
Weakness: CWE-611

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.

Affected products

Apache Software Foundation Apache NiFi: before 1.6.0 — fixed in 1.6.0

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache NiFi 1.6.0. Check the vendor advisory for mitigations.

References

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

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