Name: CVE-2025-64118: Concurrent Execution using Shared Resource with Improper Synchronization
Creator: Rapid7
Published: 2025-10-30T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2025-64118, CWE-362, CWE-367, CVSS 6.1, EPSS 0.00005

node-tar is a Tar for Node.js. In 7.5.1, using .t (aka .list) with { sync: true } to read tar entry contents returns uninitialized memory contents if tar file was changed on disk to a smaller size while being read. This vulnerability is fixed in 7.5.2.

CVSS Details

CVSS 4.0 Base Score: 6.1 (MEDIUM)
CVSS 4.0 Vector: (CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:H/VI:L/VA:L/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Redhat_linux	—	No solution exists	Jul 17, 2026	Oct 30, 2025

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CVSS Details

Covered by Rapid7

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