Uncaught Exception in node-tar - #VU135506
Published: June 26, 2026
Vulnerability identifier: #VU135506
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-248
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 an uncaught exception in the PAX extended header parser when processing attacker-supplied tarballs containing NUL bytes in path or linkpath records. A remote attacker can supply a specially crafted tarball to cause a denial of service.
The exception is triggered after the crafted value reaches filesystem operations and can bypass the consumer's await/try-catch error handling boundary.
Remediation
Install security update from vendor's website.