CVE-2026-24842
Medium
Elevated severity or exploit probability.
CVSS base
8.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
EPSS — probability of exploitation (30 days)
0.6%
45.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-59
Published 2026-01-28 · modified 2026-09-07
Description
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.
Affected
References
- https://github.com/isaacs/node-tar/commit/f4a7aa9bc3d717c987fdf1480ff7a64e87ffdb46
- exploit https://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4v
- https://access.redhat.com/errata/RHSA-2026:18480
- https://access.redhat.com/errata/RHSA-2026:18868
- https://access.redhat.com/errata/RHSA-2026:2900
- https://access.redhat.com/errata/RHSA-2026:33371
- https://access.redhat.com/errata/RHSA-2026:5447
- https://access.redhat.com/errata/RHSA-2026:6192
- https://access.redhat.com/security/cve/CVE-2026-24842
- https://bugzilla.redhat.com/show_bug.cgi?id=2433645
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24842.json