VDB
CVE-2026-61897
CVE-2026-61897
PUBLISHED
CVSS 7.8 HIGH
Reported by canonical · Published August 20, 2026
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.
Risk Scores
CVSS 3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Canonical | accountsservice | 22.07.5-2ubuntu1, 23.13.9-2ubuntu6, 23.13.9-8ubuntu5 |
| Canonical | accountsservice | 22.07.5-2ubuntu1, 23.13.9-2ubuntu6, 23.13.9-8ubuntu5 |
Timeline
- Aug 20, 2026 CVE Published
- Aug 22, 2026 Coalition ESS Score
- Aug 24, 2026 EPSS Score
- Sep 3, 2026 Security Advisory
References
- Launchpad Bug #2157985 issue-tracking
- Ubuntu CVE Tracker vendor-advisory