CVE-2026-62354
Apache NiFi: Incorrect Authorization for Parameter Context Validation Requests
Description
Authorization handling for Parameter Context validation requests in Apache NiFi 1.10.0 through 2.10.0 allows clients with read access to submit proposed Parameter values. The proposed values override current configuration, enabling users with read access to invoke predefined component validation methods with alternative settings. Apache NiFi installations that do not implement different levels of authorization for viewing and modifying Parameter Context configuration are not subject to this vulnerability. Upgrading to Apache NiFi 2.11.0 is the recommended mitigation, requiring write access to submit Parameter Context validation requests.
INFO
Published Date :
Aug. 3, 2026, 8:17 p.m.
Last Modified :
Oct. 23, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | f0158376-9dc2-43b6-827c-5f631a4d8d09 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Upgrade Apache NiFi to version 2.11.0 or newer.
- Ensure write access is required for validation requests.
- Review and implement distinct authorization levels.
- Restrict parameter context modification access.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-62354.
| URL | Resource |
|---|---|
| https://lists.apache.org/thread/l17xcnnf1rm7qljmypyjxmh62cx4o4wj | Mailing List Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2026/08/03/11 | Mailing List Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-62354 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-62354
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-62354 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-62354 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: Apache NiFi de Apache Software Foundation, Description: La gestión de la autorización para las solicitudes de validación de Contexto de Parámetros en Apache NiFi 1.10.0 hasta 2.10.0 permite a los clientes con acceso de lectura enviar valores de Parámetro propuestos. Los valores propuestos anulan la configuración actual, permitiendo a los usuarios con acceso de lectura invocar métodos de validación de componentes predefinidos con configuraciones alternativas. Las instalaciones de Apache NiFi que no implementan diferentes niveles de autorización para ver y modificar la configuración del Contexto de Parámetros no están sujetas a esta vulnerabilidad. La actualización a Apache NiFi 2.11.0 es la mitigación recomendada, que requiere acceso de escritura para enviar solicitudes de validación de Contexto de Parámetros. -
Initial Analysis by [email protected]
Aug. 10, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:* versions from (including) 1.10.0 up to (excluding) 2.11.0 Added Reference Type Apache Software Foundation: https://lists.apache.org/thread/l17xcnnf1rm7qljmypyjxmh62cx4o4wj Types: Mailing List, Vendor Advisory Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2026/08/03/11 Types: Mailing List, Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 05, 2026
Action Type Old Value New Value Changed SSVC {'id': 'CVE-2026-62354', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-04T19:21:55.917521Z'} {'id': 'CVE-2026-62354', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-04T00:00:00+00:00'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 04, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-62354', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-04T19:21:55.917521Z'} -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Aug. 03, 2026
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2026/08/03/11 -
New CVE Received by [email protected]
Aug. 03, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Apache Software Foundation', 'product': 'Apache NiFi', 'versions': [{'status': 'affected', 'version': '1.10.0', 'versionType': 'semver', 'lessThanOrEqual': '2.10.0'}], 'packageName': 'org.apache.nifi:nifi-web-api', 'defaultStatus': 'unaffected'}] Added Description Authorization handling for Parameter Context validation requests in Apache NiFi 1.10.0 through 2.10.0 allows clients with read access to submit proposed Parameter values. The proposed values override current configuration, enabling users with read access to invoke predefined component validation methods with alternative settings. Apache NiFi installations that do not implement different levels of authorization for viewing and modifying Parameter Context configuration are not subject to this vulnerability. Upgrading to Apache NiFi 2.11.0 is the recommended mitigation, requiring write access to submit Parameter Context validation requests. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:L/U:Amber Added CWE CWE-863 Added Reference https://lists.apache.org/thread/l17xcnnf1rm7qljmypyjxmh62cx4o4wj