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Medium

XML External Entity Reference in Apache NiFi

  • Disclosed: 17.05.2022
  • Updated: 11.10.2026 11:20

An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Affected software

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PlatformPackageVulnerable versionsFixed in
Java / Kotlin (Maven) org.apache.nifi:nifi >= 1.0.0, < 1.4.0 1.4.0

References

CVSS score 6.5/10
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-611
Platform
Java / Kotlin (Maven)
Package
org.apache.nifi:nifi
Disclosed
17.05.2022
Updated
11.10.2026 11:20

Sources and licenses

OSV / GitHub Advisory Database - GHSA-qj7f-j6h9-g5rq - CC BY 4.0

Vulnerability history: org.apache.nifi:nifi

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (21) in the archive
Total entries
21
First → latest
12.2018 06.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 9
  • Medium 10

Disclosures per year

Severity:
  1. Code injection in Apache NiFi and NiFi Registry
    High · 8.8 CVE-2022-33140 >= 1.10.0, < 1.16.3 1.16.3
  2. Origin Validation Error in Apache NiFi
    High · 7.5 CVE-2017-7667 < 0.7.4, >= 1.0.0, < 1.3.0 0.7.4, 1.3.0
  3. XML External Entity Reference in Apache NiFi this entry
    Medium · 6.5 CVE-2017-12623 >= 1.0.0, < 1.4.0 1.4.0
  4. Injection in Apache NiFi
    Critical · 9.8 CVE-2017-5636 < 0.7.2, >= 1.0.0, < 1.1.2 0.7.2, 1.1.2
  5. Apache NiFi XSS issue in context path handling
    Critical · 9.8 CVE-2017-15697 >= 1.0.0, < 1.5.0 1.5.0
  6. Apache NiFi host header poisoning issue
    High · 7.5 CVE-2017-12632 >= 1.0.0, < 1.5.0 1.5.0
  7. Apache NiFi JMS Deserialization issue
    High · 7.5 CVE-2018-1310 < 1.6.0 1.6.0
  8. Improper Authentication In Apache NiFi
    High · 7.5 CVE-2017-5635 < 0.7.2, >= 1.0.0, < 1.1.2 0.7.2, 1.1.2
  9. Multiple components in Apache NiFi do not restrict XML External Entity references
    High · 7.5 CVE-2022-29265 >= 0.0.1, < 1.16.1 1.16.1
  10. Inadequate Encryption Strength in Apache NiFi
    High · 7.5 CVE-2020-9491 >= 1.2.0, < 1.12.0-RC1 1.12.0-RC1
  11. Missing Authentication for Critical Function in Apache NiFi
    High · 7.5 CVE-2020-9487 >= 1.0.0, < 1.12.0-RC1 1.12.0-RC1
  12. Cleartext Transmission of Sensitive Information in Apache nifi
    High · 7.5 CVE-2018-17195 >= 1.0.0, < 1.8.0 1.8.0

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