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HIGH

GHSA-8cj5-5rvv-wf4v

tar-fs can extract outside the specified dir with a specific tarball

Quick fix

GHSA-8cj5-5rvv-wf4v — tar-fs: upgrade to the fixed version with the command below.

npm install tar-fs@1.16.5

Details

### Impact v3.0.8, v2.1.2, v1.16.4 and below

### Patches Has been patched in 3.0.9, 2.1.3, and 1.16.5

### Workarounds You can use the ignore option to ignore non files/directories.

```js ignore (_, header) { // pass files & directories, ignore e.g. symlinks return header.type !== 'file' && header.type !== 'directory' } ```

### Credit Thank you Caleb Brown from Google Open Source Security Team for reporting this in detail.

Are you affected?

Enter the version of the package you're using.

Affected packages

npm/tar-fs
Introduced in: 0Fixed in: 1.16.5
Fixnpm install tar-fs@1.16.5
npm/tar-fs
Introduced in: 2.0.0Fixed in: 2.1.3
Fixnpm install tar-fs@2.1.3
npm/tar-fs
Introduced in: 3.0.0Fixed in: 3.0.9
Fixnpm install tar-fs@3.0.9

References