---
cve: "CVE-2026-78237"
severity: "HIGH"
cvss: 7.8
epss: "13%"
vendor: "Admin By Request (ABR)"
kev: false
exploited: false
published: "2026-08-26 08:16:46"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T00:31:07+02:00"
---

# CVE-2026-78237

> 7.8 HIGH

## Beschreibung

Insufficient input validation in ABR allows a low-privileged user to inject malicious entries into the sudoers file, resulting in persistent root access that remained effective after the ABR session ended.

## CVSS-Vektor

```
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-110/>
- <https://docs.adminbyrequest.com/security-advisories/abr-mac-26-02.htm>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-78237) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_