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Alerts This Week
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Debian DSA-6175-1 libyaml-syck-perl Severe Denial of Service and Code Exec

debian
Calendar Grey March 22, 2026
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Upgrade libyaml-syck-perl due to critical vulnerabilities leading to potential code execution and DoS.
Several vulnerabilities were discovered in libyaml-syck-perl, a Perl module providing a fast, lightweight YAML loader and dumper, which may result in denial of service and potentia...
Topics%20covered

Topics Covered

security advisory denial of service critical debian arbitrary code execution libyaml

Summary

For the oldstable distribution (bookworm), this problem has been fixed
in version 1.34-2+deb12u2.

For the stable distribution (trixie), this problem has been fixed in
version 1.34-2+deb13u2.

We recommend that you upgrade your libyaml-syck-perl packages.

For the detailed security status of libyaml-syck-perl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libyaml-syck-perl

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: libyaml-syck-perl
CVE ID: CVE-2026-4177

Topics%20covered

Topics Covered

security advisory denial of service critical debian arbitrary code execution libyaml

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