CVE-2026-102631: authd 0.1 to before 0.7.1, 0.1 to before 0.7.1~ubuntu24.04.1, 0.1 to before 0.7.1~ubuntu26.04

Affected technology

authd · 0.1 to before 0.7.1, 0.1 to before 0.7.1~ubuntu24.04.1, 0.1 to before 0.7.1~ubuntu26.04
Canonical

Description’s affected range: before 0.7.1

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · No user interaction required

What an attacker can do

The new user can access and modify files belonging to the previous user, including credentials such as SSH keys and cloud API tokens, and silently rebinds the local account record to the new identity. Vendor/CNA’s CVSS 4.0 assessment (base score 5.9/10) rates confidentiality impact as high; integrity impact as low; availability impact as none.