DEBIAN-CVE-2026-5089: libyaml-syck-perl security update

DEBIAN-CVE-2026-5089, released May 27, 2026, fixes 1 CVE in libyaml-syck-perl. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.3

Base score, 0 to 10

Highest EPSS

0.0040

34th percentile

Fixed package versions

Product	Release	Fixed in
libyaml-syck-perl	Debian 12.15 (bookworm)	1.34-2+deb12u3
libyaml-syck-perl	Debian 13.5 (trixie)	1.34-2+deb13u3
libyaml-syck-perl	Debian 14	1.36-3

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-5089	libyaml-syck-perl: YAML::Syck versions before 1.38 for Perl has an out-of-bounds read	7.3	0.0040	None reported

Also fixes CVE-2026-5089

OPENSUSE-SU-2026:20938-1
perl-YAML-Syck on opensuse-leap 16.0
ALAS2023-2026-1769
perl-YAML-Syck, perl-YAML-Syck-debuginfo, perl-YAML-Syck-debugsource and 1 more on amzn 2023

Vendor advisory

https://security-tracker.debian.org/tracker/CVE-2026-5089

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/debian-cve-2026-5089">DEBIAN-CVE-2026-5089 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.