CVE-2025-40908

CRITICAL

YAML-LibYAML <0.903.0 - Code Injection

Title source: llm
STIX 2.1

Description

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

Scores

CVSS v3 9.1
EPSS 0.0037
EPSS Percentile 59.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-552
Status published
Products (1)
ingydotnet/yaml-libyaml < 0.903.0
Published Jun 01, 2025
Tracked Since Feb 18, 2026