---
cve: "CVE-2026-29786"
severity: "HIGH"
cvss: 8.2
epss: "41%"
vendor: "isaacs"
kev: false
exploited: false
published: "2026-03-07 16:15:55"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T09:41:12+02:00"
---

# CVE-2026-29786

> 8.2 HIGH · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 2b72abc1d47c3570e1ad95c9ab557fc4c2e6e4b1 (Commit)
- 7bc755dd85e623c0279e08eb3784909e6d7e4b9f (Commit)

## Referenzen

- <https://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96>
- <https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9f>
- <https://access.redhat.com/security/cve/CVE-2026-29786>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2445476>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29786.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-29786) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_