GHSA-vj76-c3g6-qr5v

Suggest an improvement
Source
https://github.com/advisories/GHSA-vj76-c3g6-qr5v
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/09/GHSA-vj76-c3g6-qr5v/GHSA-vj76-c3g6-qr5v.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-vj76-c3g6-qr5v
Aliases
Downstream
Related
Published
2025-09-24T18:57:04Z
Modified
2025-09-26T17:24:25Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball
Details

Impact

v3.1.0, v2.1.3, v1.16.5 and below

Patches

Has been patched in 3.1.1, 2.1.4, and 1.16.6

Workarounds

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

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

Credit

Reported by: Mapta / BugBunny_ai

Database specific 
{
    "cwe_ids": [
        "CWE-22",
        "CWE-61"
    ],
    "nvd_published_at": "2025-09-24T18:15:42Z",
    "github_reviewed_at": "2025-09-24T18:57:04Z",
    "severity": "HIGH",
    "github_reviewed": true
}
References

Affected packages

npm / tar-fs

Package

Name
tar-fs
View open source insights on deps.dev
Purl
pkg:npm/tar-fs

Affected ranges

Type
SEMVER
Events
Introduced
3.0.0
Fixed
3.1.1

npm / tar-fs

Package

Name
tar-fs
View open source insights on deps.dev
Purl
pkg:npm/tar-fs

Affected ranges

Type
SEMVER
Events
Introduced
2.0.0
Fixed
2.1.4

npm / tar-fs

Package

Name
tar-fs
View open source insights on deps.dev
Purl
pkg:npm/tar-fs

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.6