An update for perl-YAML-LibYAML is now available for Red Hat Enterprise Linux
 9.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of
 Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Kirill Siminov's "libyaml" is arguably the best YAML
 implementation. The C library is written precisely to the YAML 1.1 specification. It was originally bound to Python and was later bound to Ruby.

Security Fix(es):

* yaml-libyaml: LibYAML Perl File Modification Vulnerability (CVE-2025-40908)

For more details about the security issue(s), including the impact, a CVSS
 score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2025-40908: Files or Directories Accessible to External Parties (CWE-552)