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From: Slackware Security Team <security@slackware.com>
To: slackware-security@slackware.com
Subject: [slackware-security] expat (SSA:2026-132-01)
Date: Tue, 12 May 2026 14:07:52 -0700 (PDT)
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Hash: SHA1

[slackware-security]  expat (SSA:2026-132-01)

New expat packages are available for Slackware 15.0 and -current to
fix a security issue.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/expat-2.7.5-i586-2_slack15.0.txz:  Rebuilt.
  This update fixes a security issue:
  Fix quadratic runtime from attribute name collision checks that allowed
  denial of service attacks through moderately sized crafted XML input
  (CWE-407). Please note that a layer of compression around XML can
  significantly reduce the minimum attack payload size.
  For more information, see:
    https://www.cve.org/CVERecord?id=CVE-2026-45186
  (* Security fix *)
+--------------------------+


Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project!  :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/expat-2.7.5-i586-2_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/expat-2.7.5-x86_64-2_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/expat-2.8.1-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/expat-2.8.1-x86_64-1.txz


MD5 signatures:
+-------------+

Slackware 15.0 package:
6f8ef1e7eda54a2c02fab92f83172273  expat-2.7.5-i586-2_slack15.0.txz

Slackware x86_64 15.0 package:
67ee58733d413471994c96916886d207  expat-2.7.5-x86_64-2_slack15.0.txz

Slackware -current package:
807632543b921e7ec32af49ac1589abb  l/expat-2.8.1-i686-1.txz

Slackware x86_64 -current package:
68e49a07e1200182f37e8026cdbaafb9  l/expat-2.8.1-x86_64-1.txz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg expat-2.7.5-i586-2_slack15.0.txz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com

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