Fix security issue https://npmjs.com/advisories/781

[nullivex]

Should fix this, which just popped up today.

│ Moderate      │ Prototype Pollution                                          │
├───────────────┼──────────────────────────────────────────────────────────────┤
│ Package       │ node.extend                                                  │
├───────────────┼──────────────────────────────────────────────────────────────┤
│ Patched in    │ >=1.1.7 <2.0.0 || >= 2.0.1                                   │
├───────────────┼──────────────────────────────────────────────────────────────┤
│ Dependency of │ rmdir-promise                                                │
├───────────────┼──────────────────────────────────────────────────────────────┤
│ Path          │ rmdir-promise > rmdir > node.flow > node.extend              │
├───────────────┼──────────────────────────────────────────────────────────────┤
│ More info     │ https://npmjs.com/advisories/781    

[nullivex]

I spent time making sure this would be the least impactful fix to the problem. @ljharb any help here?

[nullivex]

This security issue remains despite the approval for changes. Any way this can be merged? @garyyeap @ljharb @jacksctsai @ben-lin ?

[ljharb]

@nullivex you'll note that the gray check means i'm not a collaborator, so pinging me isn't going to help :-)

[nullivex]

My apologies, Ill leave you out of it. Initially I saw you on the Organization and thought that you may be able to contact someone with publishing privileges. Its a shame to see this vulnerability persist over incorrect usage of the package.json file.

[smamczak]

Any update on this merge?

[ljharb]

To be clear, while this is a good change (everything should always prefer using ^ ranges), it's also unnecessary, because like almost every prototype pollution CVE, this one is a false positive.

rmdirr is only used here: https://github.com/dreamerslab/node.flow/blob/dcf58ba72e3de1f97f786b44e6b938fd96b299d4/examples/node.packer/run.js#L56 and target_dir is https://github.com/dreamerslab/node.flow/blob/dcf58ba72e3de1f97f786b44e6b938fd96b299d4/examples/node.packer/run.js#L17, which is hardcoded. Thus, the vulnerability is utterly impossible - you can't even attack yourself.