What’s Vulnerable › Vulnerabilities

CVE-2017-12632

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-01-23 · updated 2026-06-17
• Weakness: CWE-20

Description

A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Affected products

• Apache Software Foundation Apache NiFi: through 1.4.0

References

• https://nifi.apache.org/security.html#CVE-2017-12632
• https://nifi.apache.org/security.html#CVE-2017-12632

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