CVE-2025-40908

YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified

State: Published
Severity: 9.1 Critical
Published: Jun 1, 2025
Updated: Jun 2, 2025
Reserved: Apr 16, 2025

Description

YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified

Scores

CVSS	Score	Vector	Source
3.1	9.1 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	CISA-ADP

Weaknesses

CWE-552 Files or Directories Accessible to External Parties

Affected Products

Product	Versions
YAML::LibYAMLTINITA	before 0.903.0Affected

References

https://github.com/ingydotnet/yaml-libyaml-pm/issues/120issue-tracking
https://github.com/ingydotnet/yaml-libyaml-pm/pull/121patch
https://github.com/ingydotnet/yaml-libyaml-pm/pull/122patch

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