CVE-2026-46728

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

16/05/2026

Last modified:

16/05/2026

Description

Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.20 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.20

Severity 3.x

HIGH

References to Advisories, Solutions, and Tools

https://github.com/barebox/barebox/security/advisories/GHSA-3fvj-q26p-j6h4
https://github.com/u-boot/u-boot/commit/2092322b31cc8b1f8c9e2e238d1043ae0637b241