CVE-2026-25828
Medium
Description
grub-btrfs through 2026-01-31 (on Arch Linux and derivative distributions) allows initramfs OS command injection because it does not sanitize the $root parameter to resolve_device(). NOTE: a third party reports "exploitation may not be feasible under normal conditions and may depend on specific implementation details within resolve_device."
SeverityMedium
CVSS5.4
Exploit probability—
ProductGrub-btrfs
PublishedFeb 12, 2026
First seenFeb 12, 2026
Weakness typeCWE-78OS command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| grub-btrfs | v ≤ 2026-01-31 | — |
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