CVE-2025-48387 - CVE House
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Status published High CVE-2025-48387

tar-fs has issue where extract can write outside the specified dir with a specific tarball

Vulnerability Description

tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.0.9, 2.1.3, and 1.16.5 have an issue where an extract can write outside the specified dir with a specific tarball. This has been patched in versions 3.0.9, 2.1.3, and 1.16.5. As a workaround, use the ignore option to ignore non files/directories.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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CVE-2025-59343
tar-fs has a symlink validation bypass if destination directory is predictable with a specific tarball
High 8.7

Affected Vendor

Affected Software

tar-fs
Vulnerable Versions:
< 1.16.5, >= 2.0.0, < 2.1.3, >= 3.0.0, < 3.0.9

Timeline

Official Publish: June 2nd, 2025
Last Modified: November 3rd, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-22

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1005 Data from Local System
Collection
T1552 Unsecured Credentials
Credential Access
T1565.001 Stored Data Manipulation
Impact