SB2026060312 - Ubuntu update for node-tar-fs
Published: June 3, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Link following (CVE-ID: CVE-2024-12905)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insecure link following in index.js. A remote attacker can supply a specially crafted file to the application and overwrite arbitrary files on the system.
2) Path traversal (CVE-ID: CVE-2025-48387)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 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/E:U/U:Amber
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to an issue where an extract can write outside the specified dir with a specific tarball. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
3) Path traversal (CVE-ID: CVE-2025-59343)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 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/E:U/U:Amber
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to symlink validation bypass if the destination directory is predictable with a specific tarball. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
Remediation
Install update from vendor's website.