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CVE-2026-29786

6.3 · MEDIUM

node-tar is a full-featured Tar for Node.js.

Published Mar 7, 2026CWE-22EPSS 0.40%

Overview

CVE-2026-29786 is a medium-severity vulnerability. It was published on March 7, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9fGitHubgithub.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96Refaccess.redhat.com/security/cve/CVE-2026-29786Refbugzilla.redhat.com/show_bug.cgi?id=2445476Refsecurity.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29786.json

How CyberStrike helps

Frequently asked questions

What is CVE-2026-29786?

CVE-2026-29786 is a medium-severity vulnerability. It was published on March 7, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-29786?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-29786?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-29786?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-29786 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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