Improper input validation in Apache NiFi
Priority LOW 38CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
EPSS 0.02848 86th percentileScored 2026-11-07
Fix Fixed org.apache.nifi:nifi (Maven): 1.5.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache NiFi | 1.0.0 - 1.4.0; 0.1.0 - 0.7.x | — | No fix listed | CNA |
| — | org.apache.nifi:nifi (Maven) | 1.0.0 to before 1.5.0 | 1.5.0 | Patch available | GHSA-w4x6-j349-9r57 |
- Apache NiFi VendorApache Affected 1.0.0 - 1.4.0; 0.1.0 - 0.7.x Fixed in — No fix listed CNA
- org.apache.nifi:nifi (Maven) Vendor— Affected 1.0.0 to before 1.5.0 Fixed in 1.5.0 Patch available GHSA-w4x6-j349-9r57
Remediation
- Fix · GHSA-w4x6-j349-9r57 org.apache.nifi:nifi (Maven) Fixed in 1.5.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2017-12632
- 2026-10-03 Alias added: GHSA-w4x6-j349-9r57
References
More Apache Nifi vulnerabilities
- 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
Sources
- CVE-2017-12632 · CVE Program
- CVE-2017-12632 · NVD
- FIRST EPSS
- GHSA-w4x6-j349-9r57 · GitHub Advisory Database · CC BY 4.0
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