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Critical Vulnerabilities in AccountsService Affect Multiple Ubuntu Versions

Critical Vulnerabilities in AccountsService Affect Multiple Ubuntu Versions

First seen 21 Jul 2026, 21:55 UTC • •
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ThreatCluster AI
ThreatCluster •July 22, 2026 at 18:56 UTC
  • •Local attackers can exploit AccountsService vulnerabilities to gain admin privileges.
  • •The vulnerabilities affect multiple Ubuntu LTS versions, including 14.04 to 20.04.
  • •Users must update and reboot their systems to mitigate the risks associated with these vulnerabilities.

Recent vulnerabilities in AccountsService allow local attackers to execute arbitrary commands as administrators on Ubuntu systems. The flaws arise from improper handling of privileges and configuration files, specifically in the SetLanguage patch and helpers. Affected systems include Ubuntu 14.04 LTS, 16.04 LTS, 18.04 LTS, and 20.04 LTS, with CVEs assigned as CVE-2026-61897 and CVE-2026-61898. The vulnerabilities were disclosed in USN-8580-2, which provides necessary updates to mitigate the risks. Users are advised to update their systems and reboot to apply the changes. The issues were confirmed by Ubuntu security advisories and are considered critical due to their potential impact.

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Timeline

2026-07-21
USN-8580-2 released
Ubuntu released an advisory detailing critical vulnerabilities in AccountsService affecting multiple LTS versions.
Ubuntu
2026-07-21
CVE-2026-61897 and CVE-2026-61898 disclosed
Two vulnerabilities were identified in AccountsService, allowing local attackers to execute commands as administrators.
Linuxsecurity
Recent
Users advised to update systems
Ubuntu advises users to apply updates and reboot their systems to address the vulnerabilities in AccountsService.
Linuxsecurity

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