OPENSUSE-SU-2026:21497-1: perl-YAML-Syck security update

OPENSUSE-SU-2026:21497-1, released July 29, 2026, fixes 5 CVEs in perl-YAML-Syck (version 1.470.0-bp160.1.1). 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 5 CVEs

Patch now 0
                                Urgent 1
                                High 3
                                Routine 1

Fixed package versions

Product	Release	Fixed in
perl-YAML-Syck	opensuse-leap 16.0	1.470.0-bp160.1.1

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
Routine	CVE-2025-11683	libyaml-syck-perl: YAML::Syck versions before 1.36 for Perl has missing null-terminators whichcauses out-of-bounds read and potential in...	6.5	0.0031	None reported

Also fixes CVE-2026-57075

ALAS2023-2026-2007
perl-YAML-Syck, perl-YAML-Syck-debuginfo, perl-YAML-Syck-debugsource and 1 more on amzn 2023
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://osv.dev/vulnerability/openSUSE-SU-2026:21497-1

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