Bug 2448281 - 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 [fedora-all]
Summary: CVE-2026-4177 perl-YAML-Syck: YAML::Syck versions through 1.36 for Perl has s...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: perl-YAML-Syck
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Paul Howarth
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["c87873d9-db61-4915-877a-b...
Depends On:
Blocks: CVE-2026-4177
TreeView+ depends on / blocked
 
Reported: 2026-03-16 23:36 UTC by Jon Moroney
Modified: 2026-09-23 03:17 UTC (History)
3 users (show)

Fixed In Version: perl-YAML-Syck-1.37-1.fc45 perl-YAML-Syck-1.39-1.fc44 perl-YAML-Syck-1.39-1.fc43 perl-YAML-Syck-1.39-1.fc42
Clone Of:
Environment:
Last Closed: 2026-03-31 00:16:49 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Jon Moroney 2026-03-16 23:36:01 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 17:54:54 UTC 
FEDORA-2026-3572f7e01c (perl-YAML-Syck-1.37-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3572f7e01c
Comment 2 Fedora Update System 2026-03-19 17:54:55 UTC 
FEDORA-2026-a8d89d8ae2 (perl-YAML-Syck-1.37-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a8d89d8ae2
Comment 3 Fedora Update System 2026-03-20 01:27:06 UTC 
FEDORA-2026-a8d89d8ae2 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-a8d89d8ae2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a8d89d8ae2

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 01:50:34 UTC 
FEDORA-2026-d226775800 has been pushed to the Fedora 42 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-d226775800`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d226775800

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 02:08:25 UTC 
FEDORA-2026-3572f7e01c 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-2026-3572f7e01c`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3572f7e01c

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 01:30:55 UTC 
FEDORA-2026-3572f7e01c 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-2026-3572f7e01c`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3572f7e01c

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 01:48:11 UTC 
FEDORA-2026-a8d89d8ae2 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-a8d89d8ae2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a8d89d8ae2

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 02:09:34 UTC 
FEDORA-2026-d226775800 has been pushed to the Fedora 42 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-d226775800`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-d226775800

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 00:16:49 UTC 
FEDORA-2026-a8d89d8ae2 (perl-YAML-Syck-1.39-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 10 Fedora Update System 2026-03-31 00:53:43 UTC 
FEDORA-2026-3572f7e01c (perl-YAML-Syck-1.39-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 11 Fedora Update System 2026-03-31 01:08:45 UTC 
FEDORA-2026-d226775800 (perl-YAML-Syck-1.39-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.
Note You need to log in before you can comment on or make changes to this bug.