CVE-2026-24842
node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal
- State
- Published
- Severity
- 8.2 High
- Published
- Jan 28, 2026
- Updated
- Sep 7, 2026
- Reserved
- Jan 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N | GitHub_M |
| 3.1 | 8.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N | redhat-SADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
node-tarisaacs |
|
References
- https://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4v
- https://github.com/isaacs/node-tar/commit/f4a7aa9bc3d717c987fdf1480ff7a64e87ffdb46
- https://access.redhat.com/security/cve/CVE-2026-24842vdb-entry
- RHBZ#2433645issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24842.json
- https://access.redhat.com/errata/RHSA-2026:33371vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:18480vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:18868vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:2900vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:6192vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:5447vendor-advisory
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