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TI-2021-19846 Aliases CVE-2021-44145GHSA-rq96-qhc5-vm4r

Apache NiFi information disclosure by XXE

Priority LOW 32CWE-200Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.

Summary

In the TransformXML processor of Apache NiFi before 1.15.1 an authenticated user could configure an XSLT file which, if it included malicious external entity calls, may reveal sensitive information.

Why it matters now

EPSS 0.01757 78th percentileScored 2026-11-07
Fix Fixed org.apache.nifi:nifi (Maven): 1.15.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache NiFiApache NiFi – 1.15.0—No fix listedCNA
—org.apache.nifi:nifi (Maven)before 1.15.11.15.1Patch availableGHSA-rq96-qhc5-vm4r
  • Apache NiFi VendorApache Affected Apache NiFi – 1.15.0 Fixed in — No fix listed CNA
  • org.apache.nifi:nifi (Maven) Vendor— Affected before 1.15.1 Fixed in 1.15.1 Patch available GHSA-rq96-qhc5-vm4r

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*0.1.0 to before 1.15.1VulnerableApache
  • cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:* Versions 0.1.0 to before 1.15.1 Vulnerable ·Apache

Remediation

  • Fix · GHSA-rq96-qhc5-vm4r org.apache.nifi:nifi (Maven) Fixed in 1.15.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-44145
  2. 2026-10-03 Alias added: GHSA-rq96-qhc5-vm4r

References

Advisory 3

  • TI-2023-17293 Apache NiFi: Potential Code Injection with Database Services using H2 CVSS 3.1HIGH 8.8
  • TI-2020-16549 Uncontrolled resource consumption in Eclipse Jetty CVSS 3.1MEDIUM 5.3
  • TI-2019-07411 Deserialization of untrusted data in Apache Commons Beanutils CVSS 3.1HIGH 7.3
  • TI-2017-11471 Improper input validation in Apache NiFi CVSS 3.0CRITICAL 9.8
  • TI-2018-01212 XML external entity injection in Apache NiFi CVSS 3.0CRITICAL 9.8
  • TI-2021-03489 Deserialization of untrusted data in jackson-databind CVSS 3.1HIGH 8.1
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences