Hi,

The following vulnerability was published for jpeg-xl.

CVE-2026-52584[0]:
| Buffer Overflow vulnerability in libjxl v.0.11.2 and before allows a
| local attacker to obtain sensitive information via the
| DecodeImageAPNG function


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-2026-52584
https://www.cve.org/CVERecord?id=CVE-2026-52584
[1] https://github.com/libjxl/libjxl/issues/4803
[2] https://github.com/libjxl/libjxl/pull/4804
https://github.com/libjxl/libjxl/pull/4870
[3] https://github.com/libjxl/libjxl/commit/2cdc4c78b6f08c09ae70627d99900446b4450b47

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

Dear maintainer,

I've prepared an NMU for jpeg-xl (versioned as 0.11.2-5.1) and uploaded
it to DELAYED/7. Please feel free to tell me if I should cancel it.

cu
Adrian

We believe that the bug you reported is fixed in the latest version of
jpeg-xl, 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 1142476@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Adrian Bunk <bunk@debian.org> (supplier of updated jpeg-xl 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: Thu, 13 Aug 2026 16:09:49 +0300
Source: jpeg-xl
Architecture: source
Version: 0.11.2-5.1
Distribution: unstable
Urgency: medium
Maintainer: Debian PhotoTools Maintainers <pkg-phototools-devel@lists.alioth.debian.org>
Changed-By: Adrian Bunk <bunk@debian.org>
Closes: 1138575 1142476
Changes:
 jpeg-xl (0.11.2-5.1) unstable; urgency=medium
 .
   * Non-maintainer upload.
   * CVE-2025-70103: Buffer overflow in PNM decoder
     (Closes: #1138575)
   * CVE-2026-52584: Buffer overflow in APNG decoder
     (Closes: #1142476)
   * Backport upstream fix for FTBFS on x32.
Checksums-Sha1:
 0287faf48e51f8478358b55f375240abbe2b7a23 3215 jpeg-xl_0.11.2-5.1.dsc
 57ef93c50262422f1e9d2d79be1ed624bed5b79b 20680 jpeg-xl_0.11.2-5.1.debian.tar.xz
Checksums-Sha256:
 547a1c75f467336b82c7178bb2390a3df5d68eddffa77ca7679754a5c3956f89 3215 jpeg-xl_0.11.2-5.1.dsc
 45b2b711b09fc3d6362cb2604befcbcbd8f0ba5937e65ad88163a1c8c66bc0dd 20680 jpeg-xl_0.11.2-5.1.debian.tar.xz
Files:
 4b2da2e56f9179e2e4f2ebb031333c50 3215 graphics optional jpeg-xl_0.11.2-5.1.dsc
 2bad471218d2c1fce5d4a07d1e9d2a1a 20680 graphics optional jpeg-xl_0.11.2-5.1.debian.tar.xz
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