Bug 2521818 - CVE-2026-13401 perl-XML-Bare: perl-XML-Bare: Denial of Service via malformed XML attributes [epel-all]
Summary: CVE-2026-13401 perl-XML-Bare: perl-XML-Bare: Denial of Service via malformed ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: perl-XML-Bare
Version: epel9
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Emmanuel Seyman
QA Contact:
URL:
Whiteboard: {"flaws": ["0e998650-39b7-4387-a4e7-c...
Depends On:
Blocks: CVE-2026-13401
TreeView+ depends on / blocked
 
Reported: 2026-08-24 11:33 UTC by Vladimir Vasilev
Modified: 2026-09-08 01:11 UTC (History)
3 users (show)

Fixed In Version: perl-XML-Bare-0.53-40.el9 perl-XML-Bare-0.53-44.fc43 perl-XML-Bare-0.53-45.fc44
Clone Of:
Environment:
Last Closed: 2026-09-08 00:45:07 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Vladimir Vasilev 2026-08-24 11:33:44 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes.

The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever.

Nameless attributes such as "<a ='c'>" or unbalanced quotes "<a b='''''''c'>" can trigger this condition.

Comment 1 Emmanuel Seyman 2026-08-30 10:01:49 UTC
perl-XML-Bare is in EPEL9 but not EPEL10.

Comment 2 Fedora Update System 2026-08-30 10:03:47 UTC
FEDORA-EPEL-2026-e2adb4a954 (perl-XML-Bare-0.53-40.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e2adb4a954

Comment 3 Fedora Update System 2026-08-30 10:03:56 UTC
FEDORA-2026-14e358a2a2 (perl-XML-Bare-0.53-44.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-14e358a2a2

Comment 4 Fedora Update System 2026-08-30 10:04:04 UTC
FEDORA-2026-5c3f4c8337 (perl-XML-Bare-0.53-45.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c3f4c8337

Comment 5 Fedora Update System 2026-08-30 10:04:13 UTC
FEDORA-2026-3a2db4368a (perl-XML-Bare-0.53-47.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a2db4368a

Comment 6 Fedora Update System 2026-08-31 17:51:56 UTC
FEDORA-2026-5c3f4c8337 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-5c3f4c8337`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-5c3f4c8337

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-08-31 18:12:26 UTC
FEDORA-2026-14e358a2a2 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-14e358a2a2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-14e358a2a2

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 8 Fedora Update System 2026-08-31 18:23:08 UTC
FEDORA-EPEL-2026-e2adb4a954 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e2adb4a954

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 9 Fedora Update System 2026-08-31 18:27:32 UTC
FEDORA-2026-3a2db4368a has been pushed to the Fedora 45 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-3a2db4368a`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3a2db4368a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Fedora Update System 2026-09-08 00:45:07 UTC
FEDORA-EPEL-2026-e2adb4a954 (perl-XML-Bare-0.53-40.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-09-08 00:56:45 UTC
FEDORA-2026-14e358a2a2 (perl-XML-Bare-0.53-44.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 12 Fedora Update System 2026-09-08 01:11:35 UTC
FEDORA-2026-5c3f4c8337 (perl-XML-Bare-0.53-45.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.


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