---
cve: "CVE-2026-61897"
severity: "HIGH"
cvss: 7.8
epss: "31.3%"
vendor: "Canonical"
kev: false
exploited: false
published: "2026-08-20 15:17:38"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T01:49:56+02:00"
---

# CVE-2026-61897

> 7.8 HIGH

## Beschreibung

An Ubuntu-specific patch to AccountsService before 23.13.9-8ubuntu7 only partially drops privileges before launching language helper scripts. It changes the effective UID/GID to the target user but leaves the real UID as 0 (root). A shell spawned by a helper script inherits ruid=0 and may reset its effective UID to root, enabling local privilege escalation.

## CVSS-Vektor

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

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

## Referenzen

- <https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/2157985>
- <https://ubuntu.com/security/CVE-2026-61897>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-61897) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_