What’s Vulnerable › Vulnerabilities

CVE-2017-12623

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-10-10 · updated 2026-06-17
• Weakness: CWE-611

Description

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 products

• Apache Software Foundation Apache NiFi: 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.1.2, 1.2.0 (+1)

References

• https://nifi.apache.org/security.html#CVE-2017-12623
• https://nifi.apache.org/security.html#CVE-2017-12623

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