---
cve: "CVE-2026-59874"
severity: "HIGH"
cvss: 8.7
epss: "42%"
vendor: "isaacs"
kev: false
exploited: false
published: "2026-07-08 16:16:33"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-08T10:56:12+02:00"
---

# CVE-2026-59874

> 8.7 HIGH · 🧪 PoC

## Beschreibung

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 9ecd4d2956fd915507eca018ddc1fea727fbba93 (Commit)
- 9e78bf058b2c22dd4d52e00d8922d5c06fc2f7b5 (Commit)

## Referenzen

- <https://github.com/isaacs/node-tar/security/advisories/GHSA-8x88-c5mf-7j5w>
- <https://github.com/isaacs/node-tar/commit/9e78bf058b2c22dd4d52e00d8922d5c06fc2f7b5>
- <https://github.com/isaacs/node-tar/releases/tag/v7.5.18>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-59874) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_