What’s Vulnerable › Vulnerabilities

CVE-2018-17195

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-19 · updated 2026-06-17
• Weakness: CWE-319

Description

The template upload API endpoint accepted requests from different domain when sent in conjunction with ARP spoofing + man in the middle (MiTM) attack, resulting in a CSRF attack. The required attack vector is complex, requiring a scenario with client certificate authentication, same subnet access, and injecting malicious code into an unprotected (plaintext HTTP) website which the targeted user later visits, but the possible damage warranted a Severe severity level. Mitigation: The fix to apply Cross-Origin Resource Sharing (CORS) policy request filtering was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Affected products

• Apache Software Foundation Apache NiFi: from 1.0.0 through 1.7.1

References

• https://nifi.apache.org/security.html#CVE-2018-17195
• https://nifi.apache.org/security.html#CVE-2018-17195

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