ALAS2023-2026-2007: Security update for 4 packages

ALAS2023-2026-2007, released August 3, 2026, fixes 4 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

9.1

Base score, 0 to 10

Highest EPSS

0.0063

50th percentile

Priority of the 4 CVEs

Patch now 0
                                Urgent 1
                                High 3
                                Routine 0

Fixed package versions

Product	Release	Fixed in
perl-YAML-Syck	amzn 2023	1.37-1.amzn2023.0.4
perl-YAML-Syck-debuginfo	amzn 2023	1.37-1.amzn2023.0.4
perl-YAML-Syck-debugsource	amzn 2023	1.37-1.amzn2023.0.4
perl-YAML-Syck-tests	amzn 2023	1.37-1.amzn2023.0.4

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-57075	libyaml-syck-perl: YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via a signed-char lookup-table index in syck_bas...	9.1	0.0063	None reported
High	CVE-2026-57077	libyaml-syck-perl: YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len	7.7	0.0019	None reported
High	CVE-2026-13713	libyaml-syck-perl: YAML::Syck versions before 1.47 for Perl allow a use-after-free and double-free via an anchor node freed while still...	7.5	0.0018	None reported
High	CVE-2026-57076	libyaml-syck-perl: YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table ke...	7.8	0.0017	None reported

Also fixes CVE-2026-57075

OPENSUSE-SU-2026:21497-1
perl-YAML-Syck on opensuse-leap 16.0
FEDORA-2026-C8484F1AFB
perl-YAML-Syck, perl-YAML-Syck-debuginfo, perl-YAML-Syck-debugsource on Fedora 43
DEBIAN-CVE-2026-57075
libyaml-syck-perl on Debian 12.15 (bookworm), Debian 13.5 (trixie), Debian 14

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-2007.html

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/alas2023-2026-2007">ALAS2023-2026-2007 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.