Answer in brief
CVE-2026-3418 records a Critical severity (CVSS 9.1) vulnerability in Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 API Manager Publisher REST API V4 (generic), WSO2/WSO2 Carbon API Management API (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 API Manager Publisher REST API V4 (generic), WSO2/WSO2 Carbon API Management API (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WSO2/WSO2 API Control Planegeneric | >=4.5.0 <4.5.0.53 || >=4.6.0 <4.6.0.17 | 4.5.0.53, 4.6.0.17 |
| WSO2/WSO2 API Managergeneric | >=4.4.0 <4.4.0.67 || >=4.5.0 <4.5.0.52 || >=4.6.0 <4.6.0.16 | 4.4.0.67, 4.5.0.52, 4.6.0.16 |
| WSO2/WSO2 API Manager Publisher REST API V4generic | >=9.30.67 <9.30.67.156 || >=9.31.86 <9.31.86.141 || >=9.32.147 <9.32.147.44 | 9.30.67.156, 9.31.86.141, 9.32.147.44 |
| WSO2/WSO2 Carbon API Management APIgeneric | >=9.30.67 <9.30.67.156 | 9.30.67.156 |
| WSO2/WSO2 Carbon API Management Implementationgeneric | >=9.30.67 <9.30.67.156 || >=9.31.86 <9.31.86.141 || >=9.32.147 <9.32.147.44 | 9.30.67.156, 9.31.86.141, 9.32.147.44 |
| WSO2/WSO2 Traffic Managergeneric | >=4.5.0 <4.5.0.51 || >=4.6.0 <4.6.0.16 | 4.5.0.51, 4.6.0.16 |
| WSO2/WSO2 Universal Gatewaygeneric | >=4.5.0 <4.5.0.52 || >=4.6.0 <4.6.0.16 | 4.5.0.52, 4.6.0.16 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
The System REST API accepts user-supplied file uploads without enforcing sufficient validation on the file type or destination, allowing files to be written to arbitrary server-accessible locations. Exploitation requires authenticated administrative access with publisher privileges. Successful exploitation permits an authenticated publisher to upload files to server-accessible locations. Depending on the deployment environment and how uploaded files are handled, this could lead to the execution of uploaded content, potentially resulting in remote code execution.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-3418 records a Critical severity (CVSS 9.1) vulnerability in Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution. The current sources do not mark it as known exploited. The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 API Manager Publisher REST API V4 (generic), WSO2/WSO2 Carbon API Management API (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps WSO2/WSO2 API Control Plane (generic), WSO2/WSO2 API Manager (generic), WSO2/WSO2 API Manager Publisher REST API V4 (generic), WSO2/WSO2 Carbon API Management API (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| WSO2/WSO2 API Control Planegeneric | >=4.5.0 <4.5.0.53 || >=4.6.0 <4.6.0.17 | 4.5.0.53, 4.6.0.17 |
| WSO2/WSO2 API Managergeneric | >=4.4.0 <4.4.0.67 || >=4.5.0 <4.5.0.52 || >=4.6.0 <4.6.0.16 | 4.4.0.67, 4.5.0.52, 4.6.0.16 |
| WSO2/WSO2 API Manager Publisher REST API V4generic | >=9.30.67 <9.30.67.156 || >=9.31.86 <9.31.86.141 || >=9.32.147 <9.32.147.44 | 9.30.67.156, 9.31.86.141, 9.32.147.44 |
| WSO2/WSO2 Carbon API Management APIgeneric | >=9.30.67 <9.30.67.156 | 9.30.67.156 |
| WSO2/WSO2 Carbon API Management Implementationgeneric | >=9.30.67 <9.30.67.156 || >=9.31.86 <9.31.86.141 || >=9.32.147 <9.32.147.44 | 9.30.67.156, 9.31.86.141, 9.32.147.44 |
| WSO2/WSO2 Traffic Managergeneric | >=4.5.0 <4.5.0.51 || >=4.6.0 <4.6.0.16 | 4.5.0.51, 4.6.0.16 |
| WSO2/WSO2 Universal Gatewaygeneric | >=4.5.0 <4.5.0.52 || >=4.6.0 <4.6.0.16 | 4.5.0.52, 4.6.0.16 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
The System REST API accepts user-supplied file uploads without enforcing sufficient validation on the file type or destination, allowing files to be written to arbitrary server-accessible locations. Exploitation requires authenticated administrative access with publisher privileges. Successful exploitation permits an authenticated publisher to upload files to server-accessible locations. Depending on the deployment environment and how uploaded files are handled, this could lead to the execution of uploaded content, potentially resulting in remote code execution.
Quoted source text, attributed separately from HOL analysis.