CVE-2026-46728

FIT Signature Verification Bypass in U‑Boot

Published May 16, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4642-1 u-boot security update
History
Type Values Removed Values Added
CPEs cpe:2.3:a:pengutronix:barebox:*:*:*:*:*:*:*:* cpe:2.3:a:denx:u-boot:2026.04:rc1:*:*:*:*:*:*
cpe:2.3:a:denx:u-boot:2026.04:rc2:*:*:*:*:*:*
cpe:2.3:a:denx:u-boot:2026.04:rc3:*:*:*:*:*:*
Vendors & Products Pengutronix
Pengutronix barebox
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title FIT Signature Verification Bypass in U‑Boot
Type Values Removed Values Added
Description Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature verification bypass because hashed-nodes is omitted from a hash.
First Time appeared Denx
Denx u-boot
Weaknesses CWE-346
CPEs cpe:2.3:a:denx:u-boot:*:*:*:*:*:*:*:*
Vendors & Products Denx
Denx u-boot
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 18, 2026, 12:53 PM
Reserved
May 16, 2026, 9:26 PM
Status
Analyzed
Published
May 16, 2026, 10:16 PM
Modified
Oct 26, 2026, 1:10 PM