Bug 2448280

Summary: CVE-2026-4177 perl-YAML-Syck: YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Jon Moroney <jmoroney>
Component: perl-YAML-SyckAssignee: Paul Howarth <paul>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: epel10CC: paul, perl-devel, steve
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["c87873d9-db61-4915-877a-b84144884cf7"]}
Fixed In Version: perl-YAML-Syck-1.39-1.el9 perl-YAML-Syck-1.39-1.el10_3 perl-YAML-Syck-1.39-1.el10_2 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-03-31 00:39:44 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2448277    

Description Jon Moroney 2026-03-16 23:35:57 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.

Comment 1 Fedora Update System 2026-03-19 18:52:34 UTC
FEDORA-EPEL-2026-e7f8f46758 (perl-YAML-Syck-1.37-1.el10_3) has been submitted as an update to Fedora EPEL 10.3.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e7f8f46758

Comment 2 Fedora Update System 2026-03-19 18:52:34 UTC
FEDORA-EPEL-2026-52be5354a0 (perl-YAML-Syck-1.37-1.el9) has been submitted as an update to Fedora EPEL 9.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-52be5354a0

Comment 3 Fedora Update System 2026-03-20 01:33:40 UTC
FEDORA-EPEL-2026-52be5354a0 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-2026-52be5354a0

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

Comment 4 Fedora Update System 2026-03-20 01:45:46 UTC
FEDORA-EPEL-2026-e7f8f46758 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e7f8f46758

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

Comment 5 Fedora Update System 2026-03-20 01:52:30 UTC
FEDORA-EPEL-2026-de60bba45b has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-de60bba45b

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

Comment 6 Fedora Update System 2026-03-23 01:37:06 UTC
FEDORA-EPEL-2026-e7f8f46758 has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e7f8f46758

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

Comment 7 Fedora Update System 2026-03-23 01:43:02 UTC
FEDORA-EPEL-2026-52be5354a0 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-2026-52be5354a0

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

Comment 8 Fedora Update System 2026-03-23 01:52:27 UTC
FEDORA-EPEL-2026-de60bba45b has been pushed to the Fedora EPEL 10.2 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-de60bba45b

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

Comment 9 Fedora Update System 2026-03-31 00:39:44 UTC
FEDORA-EPEL-2026-52be5354a0 (perl-YAML-Syck-1.39-1.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 10 Fedora Update System 2026-03-31 00:50:22 UTC
FEDORA-EPEL-2026-e7f8f46758 (perl-YAML-Syck-1.39-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-03-31 01:02:50 UTC
FEDORA-EPEL-2026-de60bba45b (perl-YAML-Syck-1.39-1.el10_2) has been pushed to the Fedora EPEL 10.2 stable repository.
If problem still persists, please make note of it in this bug report.