Type conversion in node-tar - #VU135766
Published: June 29, 2026
Vulnerability identifier: #VU135766
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-704
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: isaacs
Affected software:
node-tar
node-tar
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect type conversion or cast in the PAX header parser when parsing a crafted tar archive with an all-digit path value. A remote attacker can supply a specially crafted tar archive to cause a denial of service.
The crash occurs as an uncaught TypeError during extraction and bypasses application-level error handling, including error and warning handlers.
Remediation
Install security update from vendor's website.