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CVE-2026-25903

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

8.7 HighFix available

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
High
User interaction
Active

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.75%Up 0.7 points since Feb 17, 2026
90%50%10%1%

What each source reports

CVE List Score used 8.7

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
CVE-2026-25903
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
Weakness
CWE-862
Updated
2026-11-02
EUVDEUVD-2026-7819 8.7

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
EUVD-2026-7819
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
Updated
2026-11-02
GitHub AdvisoriesGHSA-c5w7-m8wf-xc77 8.7

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
GHSA-c5w7-m8wf-xc77
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
Weakness
CWE-862
Updated
2026-11-02
NVD 8.7

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
CVE-2026-25903
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
CVSS 3.1
6.6 MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-862
Updated
2026-11-02
OSV 8.7

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
CVE-2026-25903
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
Weakness
CWE-862
Updated
2026-11-02
OSVGHSA-c5w7-m8wf-xc77 8.7

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
GHSA-c5w7-m8wf-xc77
CVSS 4.0
8.7 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:I/V:C/RE:M/U:Amber
Weakness
CWE-862
Updated
2026-11-02
OSVBIT-nifi-2026-25903 No score

Apache NiFi: Missing Authorization of Restricted Permissions for Component Updates

Apache NiFi 1.1.0 through 2.7.2 are missing authorization when updating configuration properties on extension components that have specific Required Permissions based on the Restricted annotation. The Restricted annotation indicates additional privileges required to add the annotated component to the flow configuration, but framework authorization did not check restricted status when updating a component previously added. The missing authorization requires a more privileged user to add a restricted component to the flow configuration, but permits a less privileged user to make property configuration changes. Apache NiFi installations that do not implement different levels of authorization for Restricted components are not subject to this vulnerability because the framework enforces write permissions as the security boundary. Upgrading to Apache NiFi 2.8.0 is the recommended mitigation.

Record
BIT-nifi-2026-25903
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.nifi:nifi-web-api
Maven
1.1.0 up to 2.8.0
2.8.0
nifi
Bitnami
1.1.0 up to 2.8.0
2.8.0
org.apache.nifi:nifi-web-api
Maven
1.1.0 up to 2.8.0, plus listed versions
1.1.11.1.21.10.01.11.01.11.1
Show 45 moreShow less
1.11.21.11.31.11.41.12.01.12.11.13.01.13.11.13.21.14.01.15.01.15.11.15.21.15.31.16.01.16.11.16.21.16.31.17.01.18.01.19.01.19.11.2.01.20.01.21.01.22.01.23.01.23.11.23.21.24.01.25.01.26.01.27.01.28.01.28.11.3.01.4.01.5.01.6.01.7.01.7.11.8.01.9.01.9.11.9.22.0.0
2.8.0

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-25903 is a high vulnerability (CVSS 8.7) in Apache Nifi, published February 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.75%, the 55th percentile. Fixed in org.apache.nifi:nifi-web-api 2.8.0.

References

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