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Update Summary

USN-8688-2 provides the PAM fix for Ubuntu 26.04 LTS. It addresses a bypass of authentication lockout restrictions when failed login counters were incorrectly cleared. Reference IDs: USN-8688-1.

Update Details

Security

  • PAM could incorrectly clear failed login attempt records when some services invoked the account phase without authentication, allowing authentication lockout restrictions to be bypassed.

Hints

  • After a standard system update, reboot the computer to apply all changes.
  • Updated packages: libpam-modules, libpam-modules-bin, libpam-runtime, libpam0g, and libpam0g-dev to version 1.7.0-5ubuntu3.2.

Product Information

Vendor: Canonical

Product: Ubuntu Server

Product type: Software

Application category: Utilities

Platform: Linux

Variant: 24.04 LTS (Noble Numbat)

Version: 1.7.0-5ubuntu3.2

Vendor release date: Sep 1, 2026

Original release notes: View on vendor site

Published on updatealert.io: Sep 6, 2026

Description: Server operating system for Linux infrastructure and workloads.