node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24842.json
https://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4v
https://github.com/isaacs/node-tar/commit/f4a7aa9bc3d717c987fdf1480ff7a64e87ffdb46
https://bugzilla.redhat.com/show_bug.cgi?id=2433645
https://access.redhat.com/security/cve/CVE-2026-24842
https://access.redhat.com/errata/RHSA-2026:6192
https://access.redhat.com/errata/RHSA-2026:5447
https://access.redhat.com/errata/RHSA-2026:33371
https://access.redhat.com/errata/RHSA-2026:2900