Race condition in node-tar - CVE-2025-64118
Published: October 31, 2025
Vulnerability identifier: #VU117882
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-64118
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: isaacs
Affected software:
node-tar
node-tar
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a race condition when reading .tar archives. A local user modify the file to a smaller size wile it's being read by the application and view uninitialized memory contents.
How to mitigate CVE-2025-64118
Install updates from vendor's website.