CVE-2026-82018: IGEL OS 11

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

IGEL OS 12 before 12.9.0, 12.8.3 LTS and IGEL OS 11 before 11.11.150 contain a secure boot bypass vulnerability in the GRUB boot stage that allows physically present attackers to gain unauthorized root access by placing an unsigned empty file named igel.conf on a partition. Attackers can exploit GRUB's fail-open signature verification behavior to drop into an interactive GRUB prompt, then boot the device's own kernel with additional command-line arguments to obtain a root shell with the disk unlocked while leaving TPM PCR values unaltered.

Affected products

• IGEL IGEL OS 11: from 11.0.0, before 11.11.150 (fixed in 11.11.150)
• IGEL IGEL OS 12: from 12.0.0, up to and including 12.8.2

Published 2026-08-28. Last modified 2026-09-24.