CVE-2025-40908— YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified
Quick assessment
Affected
TINITA YAML::LibYAML
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
libyaml是YAML社区的一个适用于 YAML 的编解码库。 libyaml 0.903.0之前版本存在安全漏洞，该漏洞源于使用参数open可能导致修改现有文件。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-40908
Vulnerability Information
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Vulnerability Title
YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified
Source: CVE Program / CVE List V5
Vulnerability Description
YAML-LibYAML prior to 0.903.0 for Perl uses 2-args open, allowing existing files to be modified
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
对外部实体的文件或目录可访问
Source: CVE Program / CVE List V5
Vulnerability Title
libyaml 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libyaml是YAML社区的一个适用于 YAML 的编解码库。 libyaml 0.903.0之前版本存在安全漏洞，该漏洞源于使用参数open可能导致修改现有文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| TINITA | YAML::LibYAML | 0 ~ 0.903.0 | - |
|
II. Public POCs for CVE-2025-40908
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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V. Comments for CVE-2025-40908
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