VULNERABILITY INTELLIGENCE

CVE-2018-20834

CVSS score7.5 HIGH
EPSS probability3.15%
CISA KEVNot currently listed
Published2019-04-30
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

A vulnerability was found in node-tar before version 4.4.2 (excluding version 2.2.2). An Arbitrary File Overwrite issue exists when extracting a tarball containing a hardlink to a file that already exists on the system, in conjunction with a later plain file with the same name as the hardlink. This plain file content replaces the existing file content. A patch has been applied to node-tar v2.2.2).

Weakness classification

  • CWE-59: Improper Link Resolution Before File Access ('Link Following')

Primary references