IGEL OS 12 / 11 Secure Boot Bypass via Unsigned igel.conf File
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.
CVE-2026-82018
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-82018
IGEL OS 12
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
IGEL OS 11
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "IGEL",
"product": "IGEL OS 12",
"versions": [
{
"status": "affected",
"version": "12.0.0",
"versionType": "semver",
"lessThanOrEqual": "12.8.2"
},
{
"status": "unaffected",
"version": "12.8.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "12.9.0",
"versionType": "semver"
}
],
"defaultStatus": "affected"
},
{
"vendor": "IGEL",
"product": "IGEL OS 11",
"versions": [
{
"status": "affected",
"version": "11.0.0",
"lessThan": "11.11.150",
"versionType": "semver"
}
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-82018
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #5570 · Revision 1
- Added to Heist Feed
- Publisher date