Fedora 44 Apptainer Important Denial of Service Fix CVE-2026-27145
fedora
July 2, 2026
Update to upstream 1.5.2
Summary
Apptainer provides functionality to make portable
containers that can be used across host environments.
Update Information:
Update to upstream 1.5.2. Also fixes CVE-2026-27145 because golang was new enough.
Topics Covered
Change Log
* Tue Jun 23 2026 Dave Dykstra
References
[ 1 ] Bug #2437258 - Apptainer is compiled without FIPS support
https://bugzilla.redhat.com/show_bug.cgi?id=2437258
[ 2 ] Bug #2489307 - Apptainer persistently segfaults during SIF file compression using mksquashfs
https://bugzilla.redhat.com/show_bug.cgi?id=2489307
[ 3 ] Bug #2494375 - CVE-2026-27145 apptainer: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=2494375
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-ca1825e29e' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
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Severity
important
Lowest
Low
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Critical
Name: apptainer
Product: Fedora 44
Version: 1.5.2
Release: 1.fc44
Summary: Application and environment virtualization formerly known as Singularity
Topics Covered
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