#1136954 u-boot: CVE-2026-46728

Package:
src:u-boot
Source:
src:u-boot
Submitter:
Salvatore Bonaccorso
Date:
2026-06-24 21:05:03 UTC
Severity:
normal
Tags:
#1136954#5
Date:
2026-05-17 14:52:28 UTC
From:
To:
Hi,

The following vulnerability was published for u-boot.

CVE-2026-46728[0]:
| Das U-Boot before 2026.04 allows FIT (Flat Image Tree) signature
| verification bypass because hashed-nodes is omitted from a hash.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-46728
https://www.cve.org/CVERecord?id=CVE-2026-46728
[1] https://github.com/u-boot/u-boot/commit/2092322b31cc8b1f8c9e2e238d1043ae0637b241

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

#1136954#10
Date:
2026-06-15 10:34:07 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
u-boot, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1136954@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Henriksson <andreas@fatal.se> (supplier of updated u-boot package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 08 Jun 2026 14:48:23 +0200
Source: u-boot
Architecture: source
Version: 2025.01-3.2
Distribution: unstable
Urgency: high
Maintainer: Vagrant Cascadian <vagrant@debian.org>
Changed-By: Andreas Henriksson <andreas@fatal.se>
Closes: 1081557 1136954
Changes:
 u-boot (2025.01-3.2) unstable; urgency=high
 .
   * Non-maintainer upload by the LTS Team.
   * CVE-2024-42040 (Closes: #1081557)
   * CVE-2026-46728 (Closes: #1136954)
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#1136954#15
Date:
2026-06-24 21:03:41 UTC
From:
To:
We believe that the bug you reported is fixed in the latest version of
u-boot, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1136954@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Andreas Henriksson <andreas@fatal.se> (supplier of updated u-boot package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Mon, 22 Jun 2026 10:38:07 +0200
Source: u-boot
Architecture: source
Version: 2023.01+dfsg-2+deb12u3
Distribution: bookworm-security
Urgency: high
Maintainer: Vagrant Cascadian <vagrant@debian.org>
Changed-By: Andreas Henriksson <andreas@fatal.se>
Closes: 1056750 1081557 1136954
Changes:
 u-boot (2023.01+dfsg-2+deb12u3) bookworm-security; urgency=high
 .
   * Non-maintainer upload by the LTS Team.
   * CVE-2024-42040: buffer overread vulnerability in the DHCP implementation.
     (Closes: #1081557)
   * CVE-2026-46728: mishandles use of unit addresses in a FIT.
     (Closes: #1136954)
   * Remove avr32 arch support removed in dpkg 1.22.0 (Closes: #1056750)
     - now also leads to dak rejecting uploads even for older suites
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