GHSA-mpj7-7mg7-x95j · Severity: low · Ecosystem: maven — Apache NiFi: Missing Complete Authorization for Parameter and Service References
Apache NiFi 1.10.0 through 2.0.0 are missing fine-grained authorization checking for Parameter Contexts, referenced Controller Services, and referenced Parameter Providers, when creating new Process Groups. Creating a new Process Group can include binding to a Parameter Context, but in cases where the Process Group did not reference any Parameter values, the framework did not check user authorization for the bound Parameter Context. Missing authorization for a bound Parameter Context enabled clients to download non-sensitive Parameter values after creating the Process Group. Creating a new Process Group can also include referencing existing Controller Services or Parameter Providers. The framework did not check user authorization for referenced Controller Services or Parameter Providers, enabling clients to create Process Groups and use these components that were otherwise unauthorized. This vulnerability is limited in scope to authenticated users authorized to create Process Groups. The scope is further limited to deployments with component-based authorization policies. Upgrading to Apache NiFi 2.1.0 is the recommended mitigation, which includes authorization checking for Parameter and Controller Service references on Process Group creation.
Conclusion & alert: CVE-2024-56512 is rated Moderate Risk (47.4/100): CVSS Low severity, with high exploitation likelihood (EPSS 37.61%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +6.23% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-19 | 31.38% | 37.61% | +6.23% |
| 2 | 2026-05-12 | 40.54% | 31.38% | -9.16% |
| 3 | 2026-04-28 | — | 40.54% | — |
Full EPSS history (35 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 2.1 | 4.0 | LOW |
|
— | — | [email protected] |
| 5.4 | 3.1 | MEDIUM |
|
2.8 | 2.5 | [email protected] |
GHSA-mpj7-7mg7-x95j · Severity: low · Ecosystem: maven — Apache NiFi: Missing Complete Authorization for Parameter and Service References
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/cjc8fns5kjsho0s7vonlnojokyfx47wn | Mailing List |
| http://www.openwall.com/lists/oss-security/2024/12/28/1 | Mailing List |